Part of the reason was that I still had a large number of print books sitting in my office, waiting to be read. The other was that I eventually purchased a smartphone and iPad which introduced me to iBooks. As my publisher was also making my mysteries available on Kobo, I also created an account with that company.
It seems that I’m not the only one whose Sony is sitting neglected in a drawer. Sony hasn’t been able to compete in the North American market, so they’ve sold their digital stores to Kobo (note that this doesn’t effect Sony abroad). It seems I will receive a link this spring, allowing me to transfer my under-utilized Sony account to Kobo. I’m not quite sure how this will work as it would give me two accounts with the same company, or perhaps my Sony account will simply be absorbed into my Kobo account.
Dedicated e-readers might already becoming a thing of the past. I have Kobo and iBooks on my iPad and my phone. I also borrow e-books from my library. That’s how us active readers roll these days.