I'm kind of disappointed in the big N. I don't think it has been since the nes days that they had this many hardware problems. Bring back the power glove I say!
Nice that they offer a better strap, still sucks the fact some peoples nice tv's are destroyed though.
I think the problem isn't the strap itself, but the shape of the plastic around the strap... it comes to a sharp edge that rests against the strap, and I'm sure that after enough tension of strap vs. edge, the strap will eventually wear out. Still... I do believe I'd order a new one just for piece of mind. Christ, you can take up to 4... I imagine most people will just take 4 for the hell of it. I did. I've only got 1 Wiimote, but some extra wrist straps could come in handy.