[HarryT]

With the very greatest respect to you, it's difficult to have a sensible discussion when you're refusing to even consider any of the suggestions that you're being given. As has already been stated, you can buy books for your Kobo at any bookstore which uses Adobe DRM; you don't have to look for DRM-free books. Effectively that means that you can buy from any bookstore except Apple and Amazon, so you have lots of choices available to you.