What's more sad I suppose is that what a few people have decided to be worth reading is probably just a subset of what's actually great out there to discover. I read a lot of classic literature and philosophy not working through any list but rather trying to be less ignorant than I was yesterday.
I routinely go back to re-read things I've read before though. That's really what defines what books I got something out of reading. I'm probably never going to read Plato again if I have a choice in the matter but I'm currently returning to Cicero and then reading Augustine of Hippo whose major works I read years ago. I've also read the Bible more times than I could count.
Thankfully there aren't too many new computer books worth reading or I'd never get around to reading these old books.