Obvious solution - put the app up on the mac app store at 30% or so higher cost, and keep it around on Stripe or similar for those who want to buy it for less. Seems win-win.
Apart from breaking the rules for MAS publishing it's also dishonest - it doesn't cost $0 to self-distribute, but no one ever itemises that cost as extra
Is having some kind of rebate coupon after buying from a different payment processor an option? Or maybe increasing the price by 30% all around, and then throwing in some sort of 'added extra' for people who don't buy through the MAS?
Also, I like the MAS even less after learning about this kind of terrible control.
