will lionel fas track work with all my locos

Yes it will.   

ditto

Steve,Lady and Tex

I need to buy lots of it,try to get some used,is there a track less money,

Works with ALL of mine!

Its a great product and is easy to use.  Just be prepared for the noise, because its hands-down the loudest track system out there.

great I don't wand a loud track,what else can I do?or what other track

I see you are fairly new to the forum.  Are you near a train or hobby store that carries various types of track.  I have Fastrack on my layout and with a good sound board base over the plywood the noise is negligible.....my trains are louder than any track anyway.

Forum members have answered your initial question, your second question can be best answered if you do a forum "search" for types of track.  Your second question has been discussed many times before.

Steve, Lady and Tex

Fastrack is a very good and well designed system with excellent switches, but as others have said it is loud, possibly it's only drawback. Others have reported the noise can be reduced quite a lot by using carpet under the Fastrack, like indoor/outdoor or similar.

The least expensive track I believe would be the original Lionel tubular track. Switches for tubular might also be the most reasonably priced in that category. Gargraves is possibly next in line for price, it's pretty reasonable I think, and also very popular with folks for their O gauge layouts. I think all other switches are similarly priced and not what I would consider inexpensive. 

Atlas-O and MTH Scaletrax are solid nickel-silver rail and will be the quietest track. Some say Scaletrax looks the most realistic, but they don't have many switches to choose from and Scaletrax doesn't easily connect to other track or switches, however others have reported doing this with some degree of success.

My personal preference is Atlas-O and that's what I am using on my layout. I started out liking Fastrack, but the noise was the deal breaker for me. Since then others here have reported ways to quiet it down as I said above, but I already had purchased a bunch of Atlas by then and the cost of each is similar.

You might have a problem if you have a steam locomotive where the tender has a chuff magnet on one of the wheels.I had trouble with the magnet getting knocked off going through the Fastrack turnouts.Make sure the magnet is glued on as close to the axle as possible.Just a heads up.Nick

One thing I forgot to add above, the nickel-silver rail track (Atlas-O & Scaletrax) won't work with magne-traction. Sorry, I always forget this one because I have no magne-traction engines so it's not something I think about too much.

You just have to get the chuff magnets above the wheel surface line.  Nothing projects above that line on the inside of the wheel.

I recently did a conversion to 4-chuff and tested it on my Fastrack, but the magnets all got knocked off on Gargraves switches after delivery, so this could be an issue with any kind of track.

Another consideration with ANY track system, make sure that none of your curves are sharper than the minimum curve rating of any locomotive that you intend to operate through that section of track.

 If you have any 072 locomotives, understand that they aren't going to run through a section with 042 curves, or get into that industrial trackage with 031 or 036 curves or switches.

Doug

I have an all fastrack layout and I would switch to the older o-72 tubular track in a heartbeat if I had to do it again.  then again I like the old tubular more then fastrack.  my suggestion to you is simple go look what is out there and pick that one that will make you happy. 

That depends on what you're plans are. On a level surface magnatraction running on Atlas Track is kinda fun. Going up grades is where you run into trouble. But burnouts with the Chicago Alton is kinda cool.

I have a 15 X 28 double mainline layout all done with FasTrack.  I don't really notice the track noise when the engine sounds are on.  I even turned the sound down a little.  Now I don't run my trains wide open, I try to keep them under 50smph.  My curves are O84 and O72.  I wound up with a lot of extra track pieces and turnout do to changing the design after I started buying track. 

The only loco of mine that had problems on my FasTrack was a K-Line Allegheny.  It kept derailing on O-72 switches...all four.  Upon inspecting I notices it was the pilot truck that would wonder off.  Adding weight to the truck worked well to keep her on the track.

Yes, I guess flat would be ok with magna-traction and some extra fun could be added.  From your video it looks like I am missing out on some of the fun here by having only command control and traction tires.   

Yes and no.  Curves and straights work with all locomotives, that I have seen.  Switches and crossings do not.  Some older locomotives, like my old Marx steamer, have wide geared flanges, and they will not work on FasTrack crossings and switches, as they will climb out of them.  That and instead of rollers it has a shoe for center pickup (As does my son's older Marx F unit.) and they'll short out on the switches.  So without out knowing what all your locomotives are, no one can say with 100% certainty that it will work.  If all your locomotives are modern ones, then it will, but if you have any older ones, you'll have to watch out.