i have been a member of aeria's dream of mirror online social mmorpg for a long while now, and i am stil not bored, there are like 13 different jobs that you can do, and you can change whenever you want, and you can even use one jobs skills with another by subbing it. you can buy things from the cash shop if you want but you do not have to in order to play the game to its full extent. there is a competetive market which is forever changing which is good as it keeps you on your toes, and there are so many area's to train, or chat, they have guilds and guild cottages for private chats or parties. alchemy skill which means you can craft your own armor or weapons, and a variety of skills such as forestry so you can farm materials, overall it is a very enjoyable game, and you should definately give it a go, here is a link to their trailer, check it out:
http://files.filefront.com/Aeria+30+.../fileinfo.html