Radleyp made an interesting statement on
another thread, "...it's the book and not the way it's made available that counts for me. I think we are going overboard with this gadgetism, and losing sight of what's important, namely the book we want to read. If I want to read a book, then I read it: that it's available as an ebook (or not) is not the issue. I do not decide to read a book because it's in ebook form."
Personally, if I'm reading for fun, I will probably look for e-books available on the device I want to read with. There are a lot of choices, so I want to pick the device first.
But many people will surely agree with Radleyp and pick the book first, and then read it in whatever form works best for them.
Which way do you do it?