Hmm, well you just described the very successful Leica model ... and as frustrating as it can be as a buyer it works very very well.
Full disclosure, I just got my Leica Q2 from my smaller dealer (Capture Integration) in WAY less time than I would have got it from a major dealer. Ditto had I ordered a GFX100 ... so I’ll offer that up as an alternative approach vs using B&H or Adorama who have huge numbers of back orders. Just sayin’
From your claim of, "very successful Leica model," I must assume that you are privy to their current financial statement? Every business owner knows that unless product is moving out of the door, there is no cash coming back in through that door. Creating pent-up demand may be fine for a large conglomerate like Fuji, whose cash flow comes from a spider's web of entities, but it does not bode well for small businesses, unless they have a bevy of loyal followers.
Leica, on the other hand, has a cult following, and the most devout of those followers buy the red dot regardless of whether it is competitive with the rest of industry. To wit, there are adherents whom are convinced that the soon to be announced SL2 will represent nirvana—which may or may not come to pass—and they will likely justify its purchase on the basis of simplicity, aesthetics and so on, even if it does not offer the latest and greatest features. So, for Leica, the "pent of demand model" may actually work, but the future is uncertain, given that they have helped to create their own competition. I will admit that, up until recent times, Leica glass has been superlative, and it still is, but the competition is catching up with warp speed and they may loose their edge.
I must thank you, however, for your "local store" suggestion. Unfortunately, there are no dealers in my vicinity, and I must rely upon the large out of state resellers. Small, out of state, dealers do not offer the same level of return service provided by the larger entities and in these times of uncertain QC, the ability to return an item without the inevitable hassle of negotiation, is an important benefit.
Addendum: I just spoke with Adorama and was told that they have a backlog of 60 orders for the GFX100 ... wow! It's hard to believe that there are so many people willing to shell out 10K for a camera body. Of course, a portion of those pending orders may come from all parts of the world. But I had no idea that there were so many MF shooters, or perhaps it's just the novelty of owning the latest and greatest. It would be interesting to see a representation of the actual worldwide distribution of users. And, once again, they have no ETA for fulfillment.