For me, I can't justify anything that's a higher wind range than a full vent pro or shook 100%,.... neither of which have many hours on them, despite years of ownership. Rigged, framed up properly, right line-set selected these kites are good to gusts of 35 mph.
B2 full sail ~ rigged out can take pretty big wind and still be fun, but most of the time it's SULs, no-wind and indoor style kites in my community. Dave Ashworth for example, carries 17 indoor worthy home-builts, most are quads, totally unfair to other kites, effortless. New pilots are always sent to him, so they too can experience the difference between stock vs. crafted for one very specific environment by a master.
Most people would never need this level of addiction to no-wind equipment. The same can be said for the other extreme. How many folks are willing to buy a kite for 400 bucks that they might use once every 3 years when the wind is blowing over porta-potties? Is it worth the time to develop that kite and layout the manufacturing patterns when only 50 or 100 units can be expected as a market? Do you honestly think that those few buyers would be willing to incur all the set-up, tooling, and development/testing labor costs, split equally into their kite's sale price?
There's a larger market share in low wind, everyone experiences it unless you fly coastal exclusively and get up after breakfast is no longer served! I still crave it there, so early mornings are "my time" at the beach. Want to hang light-sets? Again, that is much easier to fly with on a lower wind kite (than you would expect). Better overpowered than under I say, you can always land or move off to the side, at least flight is possible!
How many of us want a kite that barely lifts off at 28 and works comfortably well in 50 mph also?