I paid $1899 for my EF 100-400L II back in 2018. Based on what I have seen so far with Canon RF lenses, I was expecting there to be a price premium for the new lens. $3000 is just too much for me, however, considering that the 100-500L is an f/7.1. If it was an f/5.6 maximum, I would feel like I was getting something in return for the higher price but with the slower aperture, it's not really worth it for me. As of right now I'm planning to keep my 5D Mark IV and EF lenses for a while longer. Who knows, maybe after a year or two the prices of these new RF lenses will come down, especially after initial demand has been met. For now, I'm just sitting back and watching. Not like I'm going to be doing any major traveling this year anyway. The air show in my city has been canceled as well. Maybe next year.