Well, if it was just a factor of blade quality, there wouldn't be any stainless knives. When I lived in Texas, rust wasn't an issue. Now I live in western Washington. Salt air and salt water, high humidity, bogs, a green slime that covers everything, days of constant rain and drizzle. It's impossible to stay dry and it's a harsh environment for knives. Metal seems to rust and corrode right before your eyes. I have to work to keep my stainless knives healthy. I'm not a fan of stainless steel and synthetic stocks for firearms, but I'm switching to them because it's almost impossible to keep traditional wood and blued steel from degrading on an extended hunt. Yes, stainless steel makes for a blade that isn't so great, but it can survive the harsh elements here. I have sadly become a fan of 440A, AUS8, and 420HC. Even 154CM has become a "sunny day" steel for me.