Obviously the market for mobile payments is LARGE. Credit Cards is the thing nowadays and they are used for online payments.
Paypal, Mastercard and VISA are three major players in the field.
If you would take a look at the marketcap of payment specialists you would find
VISA at spot 12 valued at 490 billion dollars
MasterCard at spot 23 at valued at 340 billion dollars
PayPal at spot 28 valued at 300 billion dollars
Dogecoin is highly volatile but has had a marketcap of around 30 billion dollars, roughly 10% of Paypal.
If you follow the money, you can see that electronic and online payments are a multi-billion dollar industry and that makes MBX and MobieCoin an interesting bet.