You may consider what it is you're looking to get out of an MMORPG before you just jump in. Speaking as someone who played MMOs for about a decade (mostly WOW, but several others as well), you would be surprised how insidiously that type of game can alter your habits. Also, MMORPGs could be absolutely mind numbing at the height of their popularity, modern MMOs are so heavily streamlined that I would argue many aren't even all that fun to play anymore.
I'm not saying MMOs are bad, or that you won't enjoy them, but maybe just think about what the fun you're seeking looks like.
Hilarious that E. Coli got it first.