Here's a problem I foresee: These groupon style sites do their business because these vendors make money due to the volume. Whether its return customers, or small margins adding together, or whatever, the whole reason vendors get involved is volume. So one question: will indy craftsfolk be able to handle the volume? If they get 1000 orders for their handmade leather wallet, seems like people will start to get pissed after month 2 of waiting.