AlwaysVeg--that's exactly the reason I got a Kindle--or rather was given one by those who were about to buried by my paper books! I was a reluctant adopter at first, but once it was up and running and I was reading the first couple of books that I chose (my gifters had also put on some books they thought I'd like...nice but no cigar), I was converted. Aside from the storage issue, it weighs less (and a LOT less than a hardcover) and is easier on the hands in that it doesn't have to be "held" open, the print size is adjustable, the books are cheaper, you can often get a "library book" without making a trip to the library, depending on the cover you get it will usually easily fit into a bag or purse, etc., etc. I also like the people I give books to to have one, as it makes it easy for me to give an instant last minute gift---or you can set it up to be delivered on a specific day---so if you see a book that would be perfect for your dad, but his birthday isn't for months, you don't have to buy it and store it until then, or keep reminding yourself to get it when it is closer.
But the main thing is the storage issue---and like waywyrd, I think I'm even more of a reader than before I had one--ease of shopping definitely affects that! Enjoy!