Circa

But with an emulator, you can play at 1080p, even more than that now xD. Plus, a decent PC does far more than a wii, and if the ISOs are stored on your HDD, they can't get scratched . (not to mention high res texture packs, and widescreen hacks)

Not all games work well with emulators. I spent hours getting to the main quests in twighlight princess before my sound crapped out.

Had problems with Metroid Prime games also.

NES, SNES work well for me, though.

Indeed, it's still under development. But much progress has been made in the latest dolphin builds. Be sure to check out the monthly dev blogs, many improvements have been made. But ya, I understand your point.