I had a couple of kids that used the BG Neo 8's in projects, and I think one project with the BG Neo 3, Of course, Danny basically sold them at cost to support the program. They were higher than his mid woofers or his dome tweeters, but not double or triple the price.
And I'm not saying the 10's are a bad buy at several hundred each, just that prices have inflated way beyond their previous levels, and is the result of scarcity as opposed to material or financial cost.