Assuming they have to spend time designing one and then making up injection molds... yes. If they're buying the rights to use a patented item... yes.
Seing as price doesn´t seem to be a large issue for Dimitri M (Epic kites) what do you base this on ?
What would the cost of buying the rights to use a patented item be? (Dimitri feel free to answer as well)
My fertile imagination...
The following is versus just buying the regular ol' stick-on valves that surely cost a couple of bucks in bulk.
Assuming that "high flow" valves ARE patented then you'll have to research and design your own unique product, prototype and test, then put into production. I seem to remember the cost of setting up injection molding parts as being exceptionally expensive, although the cost per unit is very low... long ago, I had a chat with a guy in the business and he said that it cost $20,000 to set up the mold but the actual cost of the finished product was only 5 cents. That's a completely random and unrelated example though.
I guess buying rights to use a patent would be between the companies, but I don't imagine it would be any cheaper...
Time for a collective? A bunch of companies design an item of exceptional quality and functionality, spread the costs and put it on multiple brands...? Rather than just peeking over shoulders at The Factory in China....