I also have collected a good number of ebooks. Some here at MR and others at places like Amazon and Smashwords. I don't know if I will ever manage to read them all but as HarryT said half the fun is in having them in my collection so that if I want something to read that I've not done before I have it available. And most of my books are from free deals at Amazon or from the summer/winter sale at Smashwords where I got them free so it isn't necessary to spend a lot of $ to build a large library of ebooks. Some I bought though they weren't free but the majority were such deals. That's one of the perks of e-readers. You can (if wise and/or lucky) find a good many books that cost you nothing. In that way all my e-readers have paid for themselves many times over.