Creating a game, hiring designers, getting it to market is hard. It takes a long time of working without getting paid a cent. Then, you have to shell out money trying to advertise it. Employees make money every day they are work. Owners only make money when their product is good. If making games didn't make a lot of money potentially, no one would bother. They couldn't afford to. Therefore, I am glad to see owners making money so I can have a game to play.
That said, I think the owners could make more money if they had a thriving game with tons of players who loved it and who told all their friends about it. If they did give some diamonds away in game at times, then I think they would keep more players here. Sure, there has to be a balance between keeping the game frustrating enough that people buy diamonds and keeping the game fun enough that people who don't spend money will stay here.
The number one complaint about this game has always been that it is too slow and boring. Even if they just had side quests or something. You need more for people to do around here. What I am hearing VanIsleGirl say is that she is too frustrated to want to spend money. If she felt more encouraged or more excited about the game, then maybe she would would spend money. That is very valuable feedback for the owners.
I have always been of the opinion that there are two kinds of spenders...those who spend money because they game thwarts their progress if they don't, and those that spend money because they are offered extra amazing things that they just have to have. I fall into the latter category. If you tell ME that the game will be harder, more challenging, more difficult unless I spend money right away, you won't ever get a penny from me. I slog along and will do whatever it takes to bull my way through. Sell pretty things, add aesthetics to offer me...that is when I get interested. I don't like to be pushed, I like to be enticed. I have been saying for a while now that Inno could make money from both groups if they tried. Make new skins available, add in new backgrounds, offer limited editions of colors for houses and things. Who knows, maybe in the future.
What I find tragic is that many of the players who have reached the top of the game have quit. That also tells me something. There should always be lots of new goals to reach. Even if it just some silly side arcade game that holds your interest. Something.