Repairing a bent bike frame, is it worth it? I have a bike with an incredibly bent frame. The bike itself I have tried to replace with other inexpensive bixes, but this one just had a certain geometry that I keep wanting to resurrect it. It is one of those give-away Schwinn Firenze GL 5000 road bikes from the 80's. 

I continue trying to find a replacement as I am sure it will be cheaper (and the bike holds no sentimental value aside from the quality of ride); but for the sake of reference, how much would it cost to get a bike frame bent back into shape? I think this frame was likely an lightweight steel one, but referencing aluminum &amp; carbon prices would be appreciated, too. (I don't know if it's even a viable solution, but wanted to at least crush the hope if it wasn't.)
If its "incredibly bent" then the answer is no.

Replacing a tube on a typical lugged steel frame will run you a couple hundred dollars from a good frame builder. It goes up from there.