@figuerres: I have no problems finding USB 3 ports/cables/hubs. There's still lots of USB 2 stuff out there, but that doesn't mean USB 3 is scarce. USB 3 Type C is still a little scarce, but surprisingly it's not in the realm of "where do I find it".
I've been buying USB 3 exclusively for about a year now.
I guess I am talking about local shopping, none of the local stores like best buy stock hardly any of the new hubs, cables etc....
same deal looking for say a 4K monitor, I can order one but I can't walk in the store and see any before I put down the money. same thing with top end video cards and ssd drives.... none in the store, I have to order them.