My advice is to hit the used record stores. Firstly because there is virtually no new classical music released on vinyl. Secondly, even if there were, it probably wouldn't sound as good as the old records. Thirdly, used classical titles are usually quite cheap and you can buy as much as you can carry for under $50.
I've also found that used classical records tend to be in much better shape, on the average, than pop titles.
If you live out in the boonies, there's always Ebay. Caveat Emptor, however.
Cheers.
Tom