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.... I figured about 9 dollars per hour,
Now, shouldn't you have considered the opportunity cost of not having the $8k to invest, oh and deduct taxes from that, present value those future values and you really should quanitfy all the chemicals, electrical and maintenance - I mean if you're going to do this you really should do it right
Spa....$8KConversation with your family, stress relife and intimate moments with your spouse......PRICELESS!! 8-)
Cheeper, more relaxing than marriage counseling... and its like a massage with a happy ending every time.
Still cheaper than a car, or a motorhome, or a boat, (or half a dozen other things) and you have luxary vacation in your backyard, everyday, year round.