There needs to be demand for the gear or else it will never be stocked.
Demand needs advertising and coverage.
And yes, it's possible to make cheaper gear. I tried a BX board last spring, it didn't hold the edge for a long arc, but it was enough to lay some trenches.
I know it's do-able to carve in softer ski boots, you don't get the angle release, but hey, most ski boots don't either.
Bindings, there are a ton of used binding's out there. I have an old pair of SnowPro Interchanger, made specifically for rentals, don't tell me the stores/hill shops threw them in tne garbage!