After the playoffs we just had, it IS an afterthought. I'm pretty sure everyone in the organization was a little more preoccupied with four rounds of playoffs.
As someone else mentioned, if there's three days of American Idol tryouts or whatever in the building, what are you really gonna do? Sucks that it won't coincide with the draft, but I personally wouldn't mind a sale in the middle of the doldrums of summer to break things up a bit.
Judging by my attendance at past draft/equipment sale parties, I doubt it takes 2 people more than a couple of days to throw this together.
Also yeah it would be alright if it is in the middle of the summer, but how much you bet they will do like they did with the Open Practice and annouce it during the week only days before. I know it is a lot of "maybe, maybe-not" but given the track record of this organization and how it runs events I wouldn't put it past them.