This weekend Tim and I finally acquired an eReader, mostly for Tim, but also for me. We decided to go with a Kobo eReader because they are cheaper and because Tim doesn't want to use it for anything other than reading. They are sold at Chapters/Indigo, and I had used up my Air Miles and putchased enough gift certificates from there to buy the eReader. Tim is a prolific reader, so it makes sense to cut back on our expenses and also on the environmental implications of such a hobby. Plus, we have quite literally run out of room for our books. All of my books are still in their boxes from when we moved as all of Tim's books occupy all of our bookshelves. So we definitely don't need any more books.
The Kobo seems to be great, particularly if you use it as the manufacturer intended (i.e. set up a Kobo account and pay for your books). Things get a little more complicated if you want to download books on the internet and then transfer them onto your Kobo, not that I have any experience with that, but the salesperson helpfully mentioned it. So far, we have set it up and Tim and I both have read a couple chapters of some books on it (the Kobo comes with free access to some of the classics, so I am reading Heart of Darkness right now, strange choice, I know, but it was mentioned in a podcast I was listening to and I realized I have never read it, so I thought I would give it a shot). The screen is very easy on the eyes compared to a computer screen, iPad, or anything backlit, and the size and weight of the Kobo is perfect for an afternoon of reading.
All things considered, I would say that the Kobo eReader (I haven't used any of the other options available, so I can't say much about them) is an excellent alternative to purchasing hard copy books, and, as an added bonus, you only pay about 50% or less of the price of the hard copy, so there are additional long-term savings. If you spend a significant amount of your money on books (more than about $200 total is about where it starts paying for itself), I would say an eReader would be a worthwhile investment. I'm going to get Tim to do a guest blog on the subject after he's had it for a couple weeks and give a fuller review.