I don't see any appeal in that winning set that they'll end up making. When I heard that the winning creation on the show would become an official set, I thought for certain that they would make the last challenge have some sort of classic theme: build a castle, or a spaceship, or some huge modular. But this plane thing that won is just godawful as a mass-produced set. It's far too personal to the builders, and while I can understand the creativity and the reason that it could win a competition like this, I have no interest in owning it whatsoever, and I sincerely doubt that I'll be alone in that. I thought this was a great idea by Lego (the winning creation becoming a set), but it could not have gone worse for them. This thing will be on perma-sale.
That said, I hope they do this again with the next season, but put a lot more thought into the parameters of the championship challenge.