Why? They seem to be the leaders in a hot industry.
I read the prospectus and I was very turned off. A few things-
1) nonexistent voting rights
2) difficult to imagine the growth continuing, especially with Starbucks discontinuing
3) weird income statement - maybe just proving that I don't understand the business enough - but I do not like seeing product development costs consistently as large as at 20% of transaction revenue. How do they spend so much on developing products and what products? Little plastic readers? This is not marketing expenses. Invest in a company you understand, and I don't.
4) JP Morgan is involved, so I assume at least something in there is crooked. Plus they will own way too much voting shares for my liking.