It's going to sound racist but Korean/Taiwanese/Chinese games, there are just so many & 95% are utter crap, the market there churns out new games on what seems a daily basis but the production values & quality are overall truly abysmal, every game is made for 1 sole goal in mind - making as much money as fast as possible before players figure out the game is a pile of crud.

There are "diamonds in the rough" that have some good gameplay in them but finding those among the miasma is a demoralising process.

I'm not saying western games don't have their share of crap games but on balance between what gets put out & what is enjoyable to play the west has so far had a hugely better portfolio on quality.

The thing that sucks the most is when it is so immediately obvious and apparent that the game only wants your cash, these games literally ram their item shops down your throat at every possible opportunity & the gameplay itself it's whole design ethic shows that the game was designed primarily to make money & providing fun was a really really long way down the list of priorities.

As an example DDO/Turbine got their "model" spot on, something they must have done was listen to criticisms of item mall games & been very sensitive to it, the Asian developers could definitely take a few leaves out of their book, they need to improve their game quality a whole lot, stop ramming their shop down players throats in so obnoxious a way & build a game people want to play because it is a great & fun game, if it's enjoyable & engaging enough people will want to buy into it without their constant prompting & hardnose pushy salesmanship tactics.
And for goodness sake build the game with entertainment as it's priority & design ethic.