How fast does the remote eat batteries? I've heard it can be fast... but is there a hardware upgrade? I've got... 27 hours into TP, roughly 10 in MP3 and maybe 3 or 4 in Wii Sports. Forgoing that I used that crappy Mad Catz rechargeable battery for maybe 10 hours total, that's still about 30 hours on the pack-in batteries the system came with(the el-cheapo dollar store batteries). But I'm just now down to 3 bars on the indicator(roughly 75%). I would have though a battery change by now would be in order.