I LOVE Trainworld!
If other online dealers would take a cue from them, they would all do much better!
Their website rocks, they are staffed by "authentic New Yorkers" who I love to talk on the phone to, and very honest and great customer service!
Some items they sell are at great prices, others not so great.
I have seen the Scale Hudson the OP talked about for a lower price, you just have to look....
However, for the items I have bought from them, they were the best price and sometimes I do not mind paying more, just for the efficiency of their website...no hunting or pecking and it works 100% of the time.
Do not expect mid western style friendliness on the phone...New Yorkers sometimes sound scary even when they are being nice, and they are a very very busy store....so do not expect much chit chat.
However, from a NY perspective they are more friendlier than most New Yorkers and I exchanged a few emails with them after hurricane Sandy expressing my concern for them and they were very grateful.
PS I am originally from NY and all of my relatives are in Long Island, Brooklyn and Staten Island LOL!