I'm old enough to be really careful with the "never" thing......
Said with love, but you don't buy at the retail level, do you Matt?
I needed a pair for my new boots this season, so I could keep skiing a much-loved pair of Head Titans (signed by A. J. Kitt -- long story).
It took more than a little searching to find a set. A lot more. I damn near bought a set of GW-compatible binders for the skis, instead.
For World Cup racing, I just don't see why GW would ever be a thing. It doesn't solve any need those athletes face nor bring any benefit to them and it would only create issues for them and the service technicians. There's simply too much sole planing, external ramp angle modification, and stance correction (abduction/adduction) going on.
True, I don't pay retail for boots or ski gear in general. But I do for bikes and other sports I partake in. And in comparison to these other sports, paying $30-50 to keep new gear compatible with older gear would be seen as a blessing, not a hindrance. The amount of different part standards, interfaces, and spacings that exist in the bike world is absolutely mind numbing and when one changes, it can render your multi-thousand dollar frame obsolete or at the very least almost unsellable. The fact that we have a relatively cheap solution to keep aging gear current is something other industries simply don't have, or even care to make. I would honestly see that as a big positive.
Now, availability (especially with spare parts) is another topic altogether and we're still feeling the residual effects of the havoc caused by COVID. Going into production for the 22/23 collection, our plastic suppliers told us (the industry at large) that we will only get enough raw material to make complete boots, and not enough to cover both complete boots and spare parts. Every month we are fighting for every ton of raw material we can get, virgin & recycled alike. It's getting better, quarter by quarter, but it's also one of those things we are strongly encouraging retailers to order upfront because the odds of them being able to call up dealer services and immediately have a part shipped to them isn't very great.