So far so good. They do scuff and you can see telltale black marks underneath. I haven't had to re-dye yet, but I'm not trooping as much as some these days, and to be honest don't mind the few scuffs as you can see them in screen caps as well.
The upside is so far no yellowing. I love my MC's, but they have yellowed a little bit. Then again, they're 8 years old...