I am with GTS! We put an inground pool in 9 years ago, it is a salt chlorinated type and solar heated which allows usage a bit longer, eg november thru to April. It has a creepy crawly thingy going around the bottom and I spend about 10min a week tending to the pool and about once a month I put 1/2 an hour into just going over everything all in one go.
My kids are now 10, 12 and 14 and the pool has been hammered from day 1, the hot nights are great too. The bank manager at the time said the pool might add 1/2 it's costed value to the value of your house but the memories you will have with family and friends will be fantastic. running the pumps is a bit costly and there is no way around it.
I am glad I got one and if I move I will get another one.