Just a quick reply regarding automation/human resources because I'm on the phone:
We have fully automated tanning salons here, I think even the entry door locks and unlocks automatically for the opening hours. All selfservice (desinfectioning before you go on the thing). The process is basically: you clean the bank, You put in coins ($5 per 4min, fucking ripoff) and a timer starts (about 2min), you undress, lie down and thats it.
I can take some photos of the salon and the appliances if you're interested, its very close to where I live.