It means exactly what it says. How many can pay for premium boards, and how many cannot, for whatever reason.
I want to know this because some people talk as if Titanal, clothoid sidecuts, big taper, decambered nose/tail, etc have all been widely available for a decade, and that if you haven't been riding them you're not "current". I say this is only true for the minority who could afford/justify $1500 Kesslers, SGs, etc. That technology has only been recently adopted by our go-to North American brands, Coiler, Prior, and Donek. Personally I have been keeping pace with what they're doing, and I have only been able to afford a Kessler just now, barely. Even still, I may have to sell it unless it rides significantly better than the more affordable boards.