Good luck I've played both free and pay and both get boring after awhile. I really don't think you are supposed to stick wth an MMO for more than a year.
Rumble Fighter is a sure kill of time that will have you having fun for a bit.
Don't join Open because its laggy there atm.. stick with begineer or amature.
Sho Online is fun. Wars take place about every 8 hours and are hella fun. The community can be full of Asses and Idiots though. Leveling is kind of a grind too.