Thanks all for your input.
At this point, I'm not even sure what direction I will be going for the foreseeable future: HO or Traditional 3-rail. (Sigh. It's a long and sordid story that can be read here if you're in the mood for some sado-maschism today.)
And IF I DO decide 3-rail, I'm not sure how much non-PW I could be interested in. However, even though I have a plan (in the above linked thread) to try to decide whether it will be HO or 3-rail, I do confess that I HAVE been browsing the Bay looking at various traditional offerings, both PW and other wanna be's... in case the direction ends up being 3-rail. Hence, I stumbled upon the Williams set we're discussing, and my resultant jaw drop.
Rusty:
Strangely, I completely understand what you're saying here:
"There's also something else, although some folks think I'm loony when I try to describe it: When you hold an original postwar piece in you hands, it has a different "feel" than a reproduction/reissue. It may be the finish or the vapors of old Lionel grease and oil, I really can't easily explain it. It's almost as if you can feel the passage of time these items have experienced."
So, as one loon to another: You hit upon something that would be important to me: That the BULK of the engines would be sure 'nuf PW, for reasons just like you described.
Now, there WOULD be some "other" engines. For example: I would want an engine(s) for yard/industrial switching that performs better than traditional, but is still very traditional in size. PW doesn't really have one. (From my gnats/camels point of view: Lionel's NW2 is WAY too big to look good with 6464 cars.)
I would also like to custom paint some prototype-inspired liveries... and it wouldn't be as important for said repaints to be sure 'nuf PW, so I've been casting my eye at the offerings of Wiliams, Railking, K-Line, etc, hence this thread about the sticker shock. (Seems to me it would be more cost-effective, and fun, to purchase PW's with "issues" and fix up n' paint!)
FWIW: I would expect the bulk of the rolling stock to be PW-like reissues, or PW, or "wanna be's" (like K-Line "Classics") depending upon which provides the cheapest route to the items I find attractive. I could also foresee some fixer-uppers getting painted into liveries that I like, but were never offered/etc.
So, there you have it. At this point I'm not seriously into the 3-rail market, only casting a speculative glance at the grass over in the 3-rail pasture... but there may yet come a time that I'm "back" into 3-rail.
We shall see!!
All fer now.
Andre