At least I don't.
Seems like when I was growing up you couldn't go five feet without someone trying to sell you a waterbed. Retailers were abundant. Hell, I had one when I was in high school. I liked it. You could adjust the heat which was nice. Mine wasn't super-wavy either, so sea-sickness wasn't a problem.
Maybe it's just because I live in a more rural area now. Do any of you have a waterbed? Do you sense that waterbeds are a dying breed or is the industry alive and well?