I'm speaking in regards to the new-found popularity of sneaker "collecting" as a whole. However, that ultimately affects reselling so to expand on that, I think you're confusing "sneakerheads" versus fads. Yes, there are more new and potential long-standing collectors in this current day, but that is far outweighed by those temporarily in it for whatever reason(s). Most limited releases are not staying as limited as they were before though. The Seals were supposed to be as limited as the Kennedys that released last year. Now, I can't even count how many times those were replenished. If you want to get technical, a true limited release is a 1-of-X and we certainly didn't have a surplus of releases that fit that category this year or even last. For the most part, a fair amount of people who genuinely want those end-up getting them for retail. That only leaves a select amount of pairs that are able to be resold. (This includes those who regularly line-up to flip and those just entering.) Even then, most true collectors have limitations. Yes, a few are sold at outrageous prices, but only a select few are able to get a taste of that. Now if everyone is a reseller lining up or ordering, you still only have that X amount getting a profit. If you want to give me a lesson on supply & demand, I'd also suggest looking into the theories and consequences of saturation...
Edit: I agree though. I don't see resellers disappearing anytime soon as well. However, I see the concept of it hitting it's peak and then, inevitably, hitting a decline...
