my daughter had a single speed built up with an old Stella frame I bought for 30 dollars. Just a few parts but a set of those neon green deep V rims *maybe worth 2-300 dollars* It was crushed while chained up by her apartment by a delivery truck. They said they'd replace it. She took it to Revolution Cycles and they quoted, to replace these days it would be about 900 dollar dollars (basically they'd replace with a Surly single speed. they spec'ed out a bike, built it, and sent the bill to the delivery company's insurance co. Actually the bike was more like $1k. NOt a classic, but she got her money's worth .