True, but then it's the same with practically anything these days - films, computer games, books. You're paying for permission to watch/read/play the product - you don't own it outright.
The difference is of course, with a DVD/game/book you can resell it on eBay or the likes, with an eBook you can't.
That said, the advantages of eBooks far outweigh the negatives in my opinion. Once you get over the hangup that you're not getting a physical item for your money, you'll be sold. If you're the type of person that lends a lot of books, either to/from friends, or from a library, an ereader is maybe not the way to go, but if you just generally read books without passing them on, get a kindle.