I ran a set of Crower extreme duty roller lifters (not PF) for over 4000 mi with a full race lobe and 250# seat pressure. I went through 3 sets of valve springs and was still on the original lifters. The biggest killer of solid roller lifters is not enough spring pressure. With a street grind roller and pressure fed lifters I would expect lifter failure to be a non-issue... as long as you check lash frequently and spring pressure occasionally (keeping records). Lash getting tighter is normal, lash getting looser indicates a problem.
Take a lesson from Ernie a.k.a. Excalibur who has been the most outspoken member on here against solid rollers. Some of the long time members will remember when he bought his ERA with the solid roller FE. Upon receiving the car he checked the lash and found some huge numbers... .060"-.070" or something like that. So, he adjusted them properly and then went out and blew up a lifter...which I would expect... and has been blaming the solid lifters ever since...
Ditto on the Crowers over the Comp Cams.