Having to be vigilant, and jump through hoops, to get a GPU is just not something I’m willing to commit to. Drops typically happen while I’m at work, so the notifications aren’t something I can respond to.
The 4080 was far more convenient. Place the order, pick up a week later. The 4080’s going to give the the level of performance in MSFS and Blender that I’m looking for. The extra performance of the 4090, is for me, a nice to have, but not a necessity.