I was excited about the museum at first; it seemed like an interesting option for game play. But between the bugs with delivering expedition rewards (means they rushed the museum out, as they were eager to get the $$$), the replacement of troop cards in expeditions with museum rewards (meaning serious players will need to buy more of the cards directly now, more $$$), and the ridiculous pricing Nexon is obviously planning to use for the legendary museum artifacts (even more $$$), this feels a lot like one last extended money grab before the game gets shut down. Hit the whales up one last time with a new set of high-priced options, see how long they can get other serious players to pay more until they inevitably get frustrated and leave, and then shutter the game.
Even if that's not the case, it's now insane to spend any money on Dominations. Given how the pricing is going to work, the whales and the hackers are going to have an insurmountable advantage in short order.