I don't know why they haven't posted the 2007 Centurion info. on this site, but I do know about them. I work for a dealer who sells them in St. Louis. The Elite V C4 Air Warrior is a great wakeboarding boat at an awesome price. We usually bring them in with the Black Scorpion (330hp) which makes them really fun to drive. The wake is narrow which makes it nice for beginners. The Avalanche steps it up a level (vinyl-wrapped dash, stainless steal rub rail, pull out cleats, etc.) Plus you get the wake benefits of a bigger, heavier boat not to mention the added comfortability factor for your passengers.
I know you didn't list an enzo, but you may want to consider them. It's a jump in price but I think well worth it. Maybe try to find a one or two year old one or even a 2007 demo.