NO the thing that drives me is that I still have a ways to go to max out Levels, equipment, runes, and get to the end of the game quests. At the rate I'm progressing maybe a year or so more.
The next main reason is that I met a lot of good people that I chat with. It would be too bad to lose touch with them if the game closes down.

uCool may want to close down the store but they still advertise for new players. And every once in a while someone new joins then quits after only one or 2 days. - its tough to try and play when everyone else is a couple hundred million power and you come in after one day with only 50,000 and realize you will never be able to compete.