I would have no problem with such a site if they were WAV files ripped straight from CD or even better - from vinyl. If they were mp3's, that wouldn't be much different from everything else already out there, and wouldnt serve much purpose, imo.
As far as ppl being lazy who want all their samples in one place, thats a joke, because samplng others music in itself is lazy. To say your less lazy because you go through a hassle of searching for something rare doesn't make it any less lazy, imo. I'm not sure why ppl think they deserve some kind of credit for discovering an old rare record of an unkown band. You didn't discover them. Some A&R discovered them years ago, signed them to a label, and put out an album that you just happened to stumble upon in a record shop. Chopping it into something new and creative is where credit is deserved, not because you found a record. fyi, everybody has access to the same music, whether its online in one place or not. Any 'rare' record someone may think they have, was likely a major label release at some point, meaning there are thousands of that same record floating around, that could likely be ordered online anyways.