Attention all! Some of the 1.8 snapshots have recently come out. The infinite villagers have always been a bug... And it has been fixed. This means the glowstone, redstone, emerald, and unenchanted diamond tool prices will go up. I do suggest you get up a large store of all the things you get from your villagers NOW BEFORE 1.8 is released.Edit: I have found a fix inn single player that I have tested, and I will be offering a fix for existing villagers that are infinite once 1.8 comes out.