The first thing these brands should do is stop releasing a new product every year, which is only slightly modified from the previous year. There is so much waste generated in developing new products, and releasing a new one simply causes the older version to lose value. I don't understand why these kite companies race each other every year to come out with new gear, which is simply a new color or slightly different profile. You cannot innovate on material and process in one years time. This is why car companies take 6-8 years before releasing new models, and aerospace is more like 10-12. Even Apple takes 2 years to really change the iPhone, with the 1-year updates simply being small bumps in performance. If kite, ski, bicycle brands shifted to longer product lifecycles, consumers would benefit with real technology advancements and reduced waste.
Not to promote my efforts to improve the sustainability in kiting, but I launched
http://www.projectcedrus.com around recycled aerospace composites and made every effort in the design and manufacturing process to eliminate waste. It is made locally, it was sized and designed digitally (no wasted testing and broken masts), and the mast itself uses 15 plies of carbon instead of 80+ like the solid carbon masts, a total waste. The software used to design the mast is $15,000/year, so most kite companies will not do this. But I am fortunate to use the software on other projects. Sadly these kite brands invest in sales and marketing, NOT in real technology.
We as consumers also have a responsibility to not buy garbage! If it's not a lot better than what you currently have, don't buy it. companies will keep making garbage if we consumers continue buy it. Use what you have, take care of it, and prevent excess consumption.