1. The card handles also selling some off for taxes every transaction and put that in an interest-accruing account.
2. The card tracked my capital gains for each transaction for easy reporting on taxes.
3. The card provider will help manage fees - I’d rather bulk deposit funds to a layer2 and have fee-less payments over having to wonder what the current network fee is.
I’d prefer if it wasn’t MasterCard since I use Visa cards, but I can’t complain too much.
The reason I want this is that I have a lot of money in cryptocurrencies and I’d rather not sell them into other assets at the moment.