I see that with the recent On Demand Stranger Kids GPK release has a nice, long 90 day availability.
Pat and others have brought this up before, but it really seems like a month or two long window could be done with OLDS 7 as well.
they could have two listings:
one is for basic set of stickers + checklist cards, with no sketches or chase cards.
the other listing for the limited number of full-blown sets with the sketches, etc., just like last year, and when those are sold out, they are gone.
Topps already does this for the baseball team sets, where there are always two options: one is a basic team set and the other includes an autograph card. Both have long duration sell windows, and of course the autographed versions can and do sell out before the clock is up, but the basic set runs for a long time.