That's a good point STeven, especially if you have been waiting for a couple years.
The biggest problem ordering direct from a maker for me is that "2 years" can turn into "6 years" very easily.
Maker decides to reduce output, maker decides to increase quality, maker decides that they are making way more money selling at shows than filling orders, maker decides to only sell direct to a select group of "buddies" and then there is always maker quits or dies.
During the multi-year extensions, I find it hard to maintain focus and waste money piddling around with knives I have less interest in than the ones I ordered.
All other methods decided on price. I have received several knives that I had to return due to poor quality, mostly from dealers rather than collectors. I find that most dealers are simply brokers, and do not in fact bother to act as quality control for what they sell, they just sell whatever the maker delivers. I have had this happen with three different dealers. And yes, these were all "new, direct from the maker" knives.