Late last year I bought my first dedicated reader, a Hanvon 516... One month later the Kindle 2i... When the Kobo came out in Australia, I bought that one, and gave the Hanvon to my daughter. A few months ago the Kogan came out, so I sold my Kobo, and bought the Kogan.
That still leaves me with only 2 dedicated readers, and I want to keep it that way - so.... when I buy the Sony 650, I'll have to sell the Kogan...