Because many of the korean games are made strictly for money and don't bring anything new to the genre.
That is why they advertise stuff like flying, or cart driving, or whatever becuase it's the only thing they have to seperate themselves from the other korean mmos. However now most of them have incorporated flying so it's back to the drawing board for them which means another stupid travel mechanic or pet system.
The biggest difference between the current korean mmos is graphic style. But even that is falling into generic molds, gritty anime or cartoony happy-go-lucky anime.
In the end you're still grinding for hours and hours to reach max level for your reward: standing in town while the new players who will all quit in a week drool over your over the top shiney armor and giant glowing weapon.
This is why wow was able to be so successful, it has end game content, so when you reach maxlevel you're basically starting a whole new game. Its how they KEPT players which allowed them to make a shit ton of money and upgrade the game to its current state which no company can match with otu spending billions on game production.
ANd wow is the reason we have games like runes of magic. It's so much easier to make money by copying things than it is to make origional stuff. Almost every feature from ROM can be pinpointed to the mmorpg they took the idea from, most of it is wow but there are a lot of small features taken from games like FFXI and warhammer (newly added public quest system)





