I feel like we'd get stuck on a Legend if the rotation changed when all were taken either because you get a Legend no one's interested in at the moment or what have you. I wouldn't mind going the VPP route, but I also feel like we should try to do something different.
I guess a suggestion might be having a set number of Legendary slots and when a Legendary is claimed, rotate in a new Legend. For example, right now we have Articuno, Zapdos, Moltres, Mewtwo, Mewtwo X, and Mewtwo Y. Let's then say Articuno is claimed. Raikou, being the next Legendary on the list gets added. So now available Legends are Zapdos, Moltres, Mewtwo, Mewtwo X, Mewtwo Y, and Raikou. When someone else gets claimed, Entei gets added, etc, etc. A timer could also be added, to ensure certain Legends aren't hanging around too long (so a Legend can hang around for a max of 2 months, then automatically be removed). Just a thought if we want to do something different from VPP ^-^
I like that idea. I think maybe I'll add that to the legendary post and we can give this system a try! This means, though, that only 6 legendaries can be listed at a time. I think that should be plenty, though. Maybe we'll just leave it at that for now so that it's not too complicated. If it doesn't work, I think I'll go ahead and revert to how VPP does it since that's a pretty simple and efficient system itself. ^^