I spend around $ 350-375 a year on my pool.
This includes: bleach, baking soda, 20 mule team borax and cya granules.
AND the cost of gas heating & pump electricity.
Anyone who exclusively uses a pool store is paying WAY more than that.
I've been lucky enough that both Homes I have owned had pools already built in.
Both had issues to work on but I didn't care (fun project i say!)
I will say in the context of my current home, the pool probably devalued the home.
The inground liner had popped out, was half full of green water...