Don't really see why you even posted your original comments, the OP quite clearly has experience of MMORPG'S and specifically said he doesn't want to do as you think he will, either you stopped reading his post after the thread title or just plain ignored it, I'm not disagreeing with you just pointing out the complete irrellevance to the OP's thread.
I was merely offering the OP some good advice - you start casual, but you end up obsessed (the majority do anyway), at the end of the day you have to decide if its really worth all the time you put in.
I don't think there are many people who play a mmorpg for an hour a day, those that do are very rare cases.