Yer. I as well am still of the opinion that they could be somewhere else than the (regular) Jeuno areas. An area exclusive for this would be perfect, but I do like the Chocobo Circuit as an idea as well.

I also think that, for obvious reasons, one should disregard any third-party services (such as the ffxiah) when thinking about this (and everything else that has to do with game development). While an exaggerated example, I think it is not far from saying “just use them cheats to win”, which is not making the game any better...