I did and have no regrets so far. I love the fact that my 3 year old daughter can play! It's a blast watching her play golf. It's totally doable for the wee ones with a single simple motion like a golf swing. I have been toying around with getting media streaming going from my media centre PC. I gotta poll some users in the appropriate forum for more ideas on that.
I picked mine up at Zellers on promo 3 days ago. Flyer was the console plus Mario Party 8 for $20 off. Turns out they 12 consolde and only had one MP8. There was 4 of us in line (and I was the youngest at 35!). We let Grandma get MP8. It was awesome because I got to sub Zelda:TP. Also grabbed Wii Play and of course a points card. At lower pricing too.
I haven't even opened up Zelda yet. Finding time is a challenge but Wii Sports is great for a few minutes of folly.
I also highly doubt they'll release a new Wii. I can see enhancements on some things perhaps, or added features. But the core console will remain the same, with updates, for the next few years. I read it somewhere on a Nintendo site about Nintendo not feeling the need whatsoever to plan for a console past the Wii; that there is no next step beyond the Wii needed. Now, I don't buy that for a minute, but I get their point that in today's technology they're reached a plateau of gaming. Where does it go from here realistically? A 720 or 1080P Wii sure, perhaps a Wii jacket with full range motion sensing etc but that's not a major shift from the current console, just updates (excluding the HD portion). It's nice to know even with Nintendo's response of "this is it" means they're backing the Wii for a number of years at least.