I understand what you mean by depth, and I'll agree that Zelda is deep, and also that, on paper, that that is something that I'd love, but not in the way I want it to be, which may be why I don't like it. Playing Zelda requires you to do a large variety of things, from trading to fighting to puzzle-solving, etc. But, from my perspective, it doesn't do any of them well. I think that that (not to discount the import of the fuckwads you always find there) is also why I despise MMORPGs.

In fact, it may be that the closer that something comes to what you want while still falling short, the more you dislike it. I've been playing golf on the PSP, and I find that putts I miss by a few inches piss me off a lot more than the ones I miss by yards.