The Isabel Marant sneakers...just "high fashion" Supras?

In the past few months, a new and very major shoe has surfaced as the "it-shoe". Last season the it was the Miu Miu Glitter Pumps. This season...Isabel Marant Sneakers:

They're hightop sneakers with a wedge, and it seems every model, blogger, editor and celeb owns a pair - retailing from between $390-$899 (some are up to $1,399.00 on ebay!).

And now, an exercise in cultural relativism.

Ever heard of streetwear? Ever heard of Supras?  Well dial back to mmmm, 2007/2008ish when Supras emerged as the "it-shoe" of the streetwear world. Mickey Factz even made a song about them. Many of the hightops have the same silhouette as the Marant sneaks, only retailing at about $110-$150 , and actually way better colorways if you ask moi:

So...what's stopping the trend-setters from slummin' it with the super available, super hot, super Supras? Is it a "high fashion" thing? Is it a class thing? Or is it as innocent as a non-knowing thing?

Seriously...thoughts?!