I am retired on pension and opening up a dive shop. I am planning to go diving every other day until I can't anymore. It will cost me $600 a week to do that, not counting equipment and my steel tanks and compressor. Maybe some people will come to dive with me, and I can make a profit or break even, but I still plan to use my pension to pay for diving. Basically, I love to scuba dive and planned to be able to afford for it in retirement. Trying to open a dive shop without pension probably would go out of business.