Just chatted with Sleevehead, and he's actually putting in a lot of work behind the scenes to create the Kickstarter and make it something continuously profitable. If successful, he'll get a cut (like most agents) but by far the majority is going to the tailor. Incidentally, both Sig Arrigo and Palmisciano set the US price at $3000 for a suit, which is pretty fair considering the quality, amount of handwork, and fit.
Obviously more would be interested in the lower price, but check out the survey here:
I'd assume that the more people are interested in the "early bird" price, the more the tailors can be convinced to make the trip out. $1500 is a killer deal for a suit.