I guess we are just "pool people." Got our first in-ground pool installed when the kids were 8 and 11. Bought the big dream house a few years later, which unfortunately had a very old and leaking pool. We had that one removed and built a new one. It's medium size (18k gal), freeform shape, with a waterfall, heater, and Polaris cleaner. The heater is only used to extend the swimming season into early May and late Sept as needed, so not much expense from that. We have a separate spa, which sees a lot of use in the cooler months.
When the kids lived here, the pool was used nearly every day from May through September. DW and I still use it about 2-3 times per week in the summer. It's also great for holidays, family gatherings, or just cooling off after working outside in the Texas heat. And, we now have grandkids, so usage is once again on the rise.
I actually enjoy the maintenance. I've discovered that if you take care of a pool properly, the ongoing maintenance is very minimal (15-20 minutes per week). It's when you start ignoring the routine that more serious problems arise that require lots of time and expense to fix. We keep it open all year, but reduce the chemicals and electrical use quite a bit in the winter. I also keep costs down by avoiding pool stores altogether. I buy liquid chlorine, muriatic acid, baking soda, and borax at Wal-Mart. Mostly I just use the chlorine; the others are to fine-tune pH and alkalinity from time to time. Once every couple years, I have to add calcium and/or cyanuric acid, but that's it. I tear down the filter and give it a good cleaning twice a year, which takes about an hour.
Even when it's not being used, we find it to be a beautiful part of the landscape, which includes lots of planting beds, stone walkways, retaining walls, and other features. We enjoy sitting out on the pool deck in the morning with coffee while the waterfall is trickling. We will eventually downsize from the big dream house, but a pool is definitely part of the specs for the new place.