My post on this subject was more about the idea that what they have done and are doing for Minions is adequate. To people saying they should relocate the Minions and expand into a "real" land instead of what they are doing, I was simply saying that it wouldn't be a very prudent expenditure. Yes, they have made money, make money now, and will for the foreseeable future, but there is a limit.
Yes, they are all relevant to some extent, but you could also point to Jimmy Neutron, Woody Woodpecker, Fievel, Barney, etc.. Eventually they can and will stop selling merchandise and being as relevant.
People keep lobbying for the replacement of Toon Lagoon as being irrelevant. Yes they're recognizable, but are the characters relevant or selling much merchandise? Last time I looked besides Betty Boop there's little merch in the stores for those characters...
It's like Six Flags with Looney Toons-- yes they are recognizable to all, but are they still relevant? Do they really sell much merchandise? Would you spend a few million dollars to add them to a park?