The kids want a swimming pool - or a splash-around-in-and-get-all-wet 3 ft or 4 ft above ground pool, rather...
They are definitely a pain in the neck to mom and dad - lots of cleaning and when we have one, the kids can't play in the backyard unless we're there every moment (even though they are older now, I still worry...)
It's great for keeping cool in the summer, though, and the exercise is wonderful. And they have so much fun!
I think we're going to do it this year despite the extra work.