How long will roller rockers last?

I'm looking at swapping to roller rockers on a 1971 429 that has the rail type rockers. What I'm wondering is do roller rockers last as long as stamped rockers or has anyone heard of them breaking? I'm building this for a mild street engine but want to keep it as reliable as I can.

yes i have see them fail but not from miles but of poor quality . hi spring psi and lack of oil will have something to do with this. i put over 4000 miles on 1.6 harland sharps on my daily driver. i think this would be the acid test for sure no more than 10.000??