no mate, it's already lost its buying power... records that were once £60 like chorus reverse are now going for £25-20 max and even less on ebay. If you hold out you can get a bit more, but it's nothing like it used to be.
It's taken me a long time to sell my stuff with about 5 left now. I'm guessing that mp3s have pushed this and also the fact a lot more vinyl was made than the industrial stuff ... so supply and demand is not the same.