I wouldn't start with an X2. Get a second hand medium AR kite from this or last year for cheap, learn with it and sell it cheap when you are ready to move onto a higher performance kite.
Rhino1 are a great buy these days as second hand.
I am probably like Dwight (except his free kite
I've bought and tried almost everything out there, Rhino, Toro, Takoon, Fuel, foils, ARX, X2, AirBlast, Mach-1 you name it. Bought them and sold them but I am not selling my X2 12m I love this kite. Some people are selling their X2s in iwindsurf or other places because they want to upgrade to a fresh X2.
I am also riding Toro 8m and 16m. Not a chance for a 18m demo yet.
Good luck with your decision.