[zevyoura]

I think you're right, but one quick note: there is actually an element of time pressure on Threadless; they print a limited quantity of each design (though popular designs are brought back as reprints). Also, they regularly (quarterly, I think) have $10 sales. T-Shirts are a crowded market, with some very strong existing players. It is an interesting concept though, best of luck to the OP!