$15 a month is a major bargain.. Consider this - most games that are pay to play, have a "buy" system in which you can buy things to improve your game at a cost. Early World of Warcraft was great, there was no "buy" system, you just bought gold. Later on you could buy characters and not even have to level them.
Aces High reminds me of a Japanese sushi bar I loved, one of their biggest problems is they never charged enough and closed down- there food was so good I would pay double for it, however they ran themselves into the ground being cheap.
Even if Aces high was $20 or $25 Its still cheap considering the hours of play/spent in game vs other games on the market.