not at all cc/ms always have more value than cosmetics./mounts
CC and MS would stay how it is where you can only get it by purchasing it with real money.
so the value would still be more/be able to change due to demand.
+1 could come up with some very easy money sink ( Make some items in the coin shop purchasable with pokedollers like cosmetics or the ram/ flash light etc) but keep the MS and Coin caps and mounts real money only.