Don't see why we can't have both tbh. Very pricey sbc for prime icons (select ones if it needs to be) and icon swaps for people that enjoy grinding objectives and **** and don't have a lot of coins.

Woukd keep value in the market and keep achievement hunters happy while keeping interest in others in the menu side of things.

Edit basically what @DannySTFC said if I'd bothered reading before posting.