But what's the intersection of critical stuff that needs to shave those milliseconds and stuff that is fine with the reduced reliability and latency variability of wireless comms vs fixed line?
My guess is edge business model will be more like long term commitment than spin up and down at will.
Of course a "build it and they will come" argument can be made in favour of something we haven't yet been able to imagine but it's starting to feel far fetched. Or maybe it's just a question of how far-edgy it makes sense to be vs cost (the original idea IIRC was building capacity colocated with the base stations).
That said, that's kind of "boring edge", companies that just want one closer datacenter to run stuff. But, that's probably where the most money is.
I wouldn't be surprised if it takes a while to open up to general public where you can dynamically scale up and down though (beyond what e.g. Cloudflare workers provides) due to the capacity challenges I mentioned elsewhere.