Buy a bulk lot on E Bay. Can get a grab bag of 100 random records for like 25 bucks if you look around. Not all are gonna be great, but youre bound to find stuff you like. Then take the others you didnt care for to your local record shop, sell them off and recoup some of your dough.
Then do it again. And again. Make your area "up on vynil". Start the movement for them. People will probably buy what you sold off. Eventually if theres enough people doing it, you can start a local record swap. Make it happen for your area, its gotta start somewhere right?