EBooks

Recently, I was told to look into purchasing Ebooks for our high school library. The only thing is how good are they if our library only has desktops? Some of our teachers have class sets of mini notebooks. Are they worth purchasing without Kindles and Ipads in our library? It is not something I feel comfortable with. Plus, some of the blogs I've read on Ebooks are not very promising. http://blog.lib.uiowa.edu/hardinmd/2011/05/27/how-good-will-ebooks-...