Can/should you re-use engine components?

Roll master are nice chains but if this a mild build that low mile used chain will be fine . And as A/J pointed out prestretched !
"Prestretched" my big old butt.

Yall use them bullcrapper chains if you want to. I've learned my lesson. To me, camshaft timing is important enough that I want it as stable as possible and I want it to stay as close as possible to where it was when I assembled it. It makes a big difference in performance that the timing stays "where" it's designed to.

I cannot believe even as broke as my *** stays, there are some on here arguing against using a really good quality chain. It behooves me.