Maybe instead of a price cap, have a price-inverted point bonus. So, if you use a £25 dog, you get a 2x bonus. If it is £5 plastic minger you get a 10x bonus. The problem is that cheap kites are small, and small kites require inhuman reaction times to trick. Beyond that, cheap kites break repeatedly. You'll need fathomless patience 1) to learn to trick a bad kite 2) to repair said kite every 40 seconds 3) to video said patched up kite on that rare day the wind is OK, and all the while you have a bag of beautiful kites that you could be flying instead. I know the temptation would be too great for me.
Don't get me wrong, I think it's a good idea, but
1. How do you get people to see the videos?
2. How do you get people to see
the videos? If in real life the question on everyone's lips is "why can't you fly your kite?", it isn't going to get any easier in a video.