Come on Natter spill the beans. Got me as to what brand is on the market cheaper as there is only GK and Liquid Force with a cheaper bow kite on the market and if price is purely your thing I'd say go for it.
From what I have been led to believe the price of the others is due to the cheaper brands not being a licensed product like Cabrinha, EH etc who pay copyright royalties to the Inflatable kite and Bow kite patent holders. There is a lot info about that matter and likely forthcoming law suits on Kiteforum which makes interesting reading if you can be bothered. You'll see a little hologram on the kites of the guys who pay Copyright fees.
My impression after flying one of these was that EH have got the most bang for your buck by a long way. There is nothing quite like the EH Ripper on the market yet from ANY other brand. If speed is your thing and being able to go down a size or two in kite due to the apparent wind it creates as a result of its high aspect.

I'm not sure and please correct me if I'm wrong but I don't think anyone else has a kite even close to 5:1 aspect of the Ripper.
A lot of the bow guys don't actually give out the aspect ratio of their kites and it has a big influence on how it works.