Scuba is not a growing sport. If anything there is excess capacity, so there shouldn't be shortages that lead to predatory pricing.
And it's not a monopoly situation either. Scubapro and Mares will still compete for the primary market and they are parts of big conglomerates with solid financial situations. Maybe one of the second tier brands (in the US) like Tabata/TUSA, Cressi or XS Scuba will use the opportunity to move up. My money would be on XS Scuba since they already have a relationship with nearly every dive shop in the country.
I think you hit it on the head, “Scuba is not a growing sport”.
I remember before the internet put a lot of new companies on the map. There were some basics like Scubapro, Aqualung, Dacor, Sherwood, Oceanic, Mares… I remember when Atomic first started.
Then as time went by and more people buy from the internet, plus wave of interest in tech diving (thanks to the internet) a bunch of secondary companies pop up offering regs. Companies like Diverite, Oxycheq (for a while), Hog, Deep 6, DGX, and several others that had other products but decided to get a reg line also.
So now we have a glut of companies selling regs, how do you pick? There are so many and because of the internet they are all a click away instead of going to your LDS to see what they carry. And all this while scuba is shrinking.
I think we will be seeing a lot of companies dropping off in the next ten years. It will be interesting to see who’s still standing.