Summer Recreation

My six-year-old has decided she is moving in with a friend of mine.  Because this friend has a pool and hot tub.

Mom has been tossed aside for water fun. Does she not realize how much weight I gained to bring her into this world?

My kids have been asking for a pool for years.  I'm leaning more towards a relaxing hot tub and have been pricing hot tub covers for sale to see what all is involved for cleanliness and safety.  It'd also be nice just to have a pool to cool off in this summer too.  How to decide?