Maybe try out one of these or sample some of Switch's offerings?http://shop.bwsurf.com/t/category/2nd-hand
Or call and ask to speak to Jeff Howard and discuss kites that have the best low end:http://www.kiteboarding.com/contactus.asp
Or call and speak to one of the two guys in this video:http://www.realwatersports.com/news/201 ... rk-review/
It's tough to get good, concise, concrete, factual info on this forum. Between the brand pimps, loyal brand owners, and the price of kites; no one has flown all the kites from the 40+(literally) different kite companies.
Just have a look at the list:http://new.ikitesurf.com/forums/viewtopic.php?t=27366
If a person rides North or Cabrinha; it's all they know and they will tell you what they ride is the best.
Maybe start buying/selling used kites to sample and experience all that is out there? Grab something cheap; try it out; sell it off and get something else. You could possibly resell at the same price you purchased at. Any loss will be small. Maybe there are only 5 kites total that you would consider as contenders?