I'm not a steel snob, either. I can and do notice the differences in edge retention between different knives used for the same tasks. My highest end steels get used the most often. Stainless steels are so much more convenient that I have stayed away from M4, even though the reports intrigue me. I use ZDP-189 (Spyderco) and keep it clean to prevent corrosion, and it has behaved very well in EDC and carpentry uses. Aus-8 (Rat-1 folder by Ontario) is strong and reliable but the edge holding leaves a lot to be desired.