My suggestion:
Cut all the versions down to one, around the premium level, get the price as low as you can reasonably get it and still make a nice profit without overly compromising quality. Also, lose the license themes and that will save a few bucks per unit. Stop trying to wring every last red cent out of the hobby in a short of time possible.
If they keep this pricing model up, eventually most folks will be tapped out and burnt out and this whole things falls like a house of cards.