Get a tattoo of Group 5 circa Black Temple :)

I agree with Rupta and Karli.  Tatoo regret is a pisser.  Just the words later in life may be not so cool, although a design thought up by you and your artist that displays the thoughts, and their meaning to you in your life would be better.   I have a tattoo on my ankle, that meant a lot to me, still does, but it wasn't well done, so I tried to have it "fixed" 3 times...so the regret is there...not on the concept, but on the quality.

I personally think anything in your life that has significant meaning that you want to kind of "hold on to" as a memory, or a state of being, and be able to look back on to as time passes is a totally cool thing to put in to a tattoo.

As far as putting the words themselves as a tattoo, I think it's a tad uncreative.  I think there is definitely a way you could put something that retains the meaning of what you are going for, but keeping it kind of special for you and still stylish as time passes.

Many tattoo artists are willing to work with you to come up with a design that does this very thing.  Bring them pictures or print outs of things like:  the WoW font, the Alliance crest, the guild tabbard design, logo stuff from the website, class symbols (like a shammy symbol or something), and other things you think could end up being crafted into something more meaningful.

Personally I say that if you are not planning on having tons of tattoos you'll be wisest to put it in a place that will not be annoying to have to cover up WHEN (and note I don't say if) you inevitably have to cover it up.