absolutely, I think it best for all of us if you tell us whats best. We'd only make a mess of the whole situation and cause some sort of banking crisis!
I think leicestersq has an idea. Set the shop out like screwfix or argos so you can keep a lot of stock. Charge a pound a ticket to sample the item. (you could even have sampling rooms ) and a premium to buy if the mood takes you ! Why stop at electronic shops?
http://www.bbc.co.uk/news/business-13337149
"Spring is traditionally a busier time of year for the housing market, although lower prices also attracted some to look around homes."