I ordered one for my IPAD. I figure it could be handy for anything even beyond snakes sales. Like people would buy so much more stuff at your yardsale if they could pay with their card. Craigslist sales! I could pull it out next time one of my daycare parents say "oh I forgot my checkbook, I'll pay you next time". That has gotten really old. It looks to me like the rate is similar to Paypal fees and I use that for all of my ebay sales. So it looks fairly affordable to me.