I switched in the Windows 98/ME era, so quite some time ago. I was tired even then of Windows being an unstable mess. BSODs, headaches with DirectX and different versions, etc. I was/am mostly a console gamer so not being able to play games on my computer was less of an issue for me. So I tried then Red Hat linux which I scored some CD images of and never really looked back.

I got a Kobo about a year ago (Libra Color) it is just great. The kobo store keeps having sales on books I want for $2 so as much as I intended to use the overdrive connectivity, I just keep buying books on it!