well, got hardly a problem with those controllers, I can play quake 3 with it quite nicely already (I don't give a damn about the thingy being plastic or not, it seems to me solid enough).
So I think that's a matter of opinion.
But considering the fitting the vmu, I just got one, so, good you tell me this now :-/
(though I'm very carefull with it, unlike other ppl I see often)