Some thoughts on this:
-talking about new frames, they sell worksman INB frames for $170 plus shipping. Made in USA, not very "quality" construction or tubing
-They sell Chinese-made Husky frames for $140, but it was $80 even just 2 or 3 years ago. Similar quality.
-The cheeeepest chinese-made cantilever frames I've seen go for $80. Very low quality.
One or two hundred bucks for a new frame made in the States that's worth having? Ain't gonna happen, unless the folks doing it are truly doing it for the "love", and are willing to take a lo$$.
Ever price out straight guage 4130? It ain't cheap, and if you're only getting enough for a limited run, your price-per-unit will be comparatively high. Then, you've got to pay to ship the stuff. It's heavy...
I just bought a True Torch frame/fork/seatpost for $500. OBviously, i'd pay that much. To be honest, id pay a lot more for the right frame with the right features, but i won't pay anything if it's got the "wrong" details. And, some of the things others mentioned (split for belt-drive, wide rear spacing) might be good ideas for them, and even for the market at-large, but they'd be deal-breakers for me. Not bad ideas, just not right for this potential customer.
Steve, I think the mistake you're making is you're asking cheapskates (and I'm using that term with all due respect and love; I'm trying to increase my frugality, really) what they'dlike to pay for a nice frame. These are dumpster-diver folks. These are ppl who want to get the frame for free, then spend a lot of $$$ and time on that "free" frame. How many of us have a dozen bikes that we got the frameset or even a rough complete for free (or very cheep), but in reality have spent thousands in parts and our own labor on that "cheeeep/free" collection of bikes?
I have. My goal now is to have fewer bikes, but nicer ones. Better planned out, better parts,more what I'm looking for to keep, rather than questions of "can i make it work? Can i keep it cheeep?". And, if we're really talking about domestically produced, quality frames built by real riders for riders, I'd put the price at $600 for frame only, if it's not got any custom options (beyond a few color choices) but decent tubing (4130 or better). (Custom options would drive the price up over a grand, and cheap hi-ten tubing make the value of the whole project kinda questionable, imo)
hth,
-rob