That ESP is a fine, fine axe, so I don't imagine you'll ever outgrow it. Getting a decent acoustic is probably your next step (if you don't already have one).
Once you have those two then you're pretty much set for life unless you want to play country (get a telecaster) or jazz (get a semi-acoustic) or classical (get a nylon-string acoustic).
Of course the list of guitars you "need" has nothing to do with the list of guitars you "want". Despite having the most reasonable wife in the world, I am currently under a "no new guitars" edict, at least for the rest of the year.
ive seen some of guitar playing. Amazing! You have some wild looking guitars. When i've graduated from playing surfer music and feel i've outgrown my ESP i would welcome recommendations on what to play next. Actually, i would love to see your list of guitars now.
I started playing in april 2011. I'm taking lessons with my eldest son. Learning guitar for me is challenging, frustrating, and rewarding all at the same time. I love it, can't wait to go home and pick it up again.