I'm with the OP. I especially dislike when the knives receive multiple significant changes on the way to production. I don't think there is much benefit to the manufacturer to announce a knife a year out, other than to gauge interest, and that interest can change on the enthusiast side with trends, other product releases, and alterations to specs.
I also hate waiting for knives because my first custom order should have taken four months, took two years instead, I didn't get the knife I ordered, and I was one of the lucky ones because the maker took off with a lot of money from other orders. Waiting for a knife now never leaves me with a sense of anticipation, just a longer delay until I feel like I'm not going to miss out or get screwed over if I had to pay any sort of deposit.
The fact that I have lots of other knives doesn't reduce my desire for a new one - ordering despite having dozens of alternatives already means I have been hit by the bug to purchase then and there. In some ways the delays are good for me, since I have skipped over many knives from several brands because by the time they arrive at retailers it has been too long, they have changed too much, I found an alternative already available from another brand (maybe even cheaper) or I managed to talk myself out of another blade when I have five in my EDC rotation and dozens more sitting around. It at least slows down my spending a bit. Sometimes.