there are still some UK retailers of Kobo:
Argus, John Lewis ( who supplied mine), PC world. that's 3 big national chains.
Plus , according to Kobo, they are still sold by W H Smith
http://uk.kobobooks.com/pages/retail...aign=retailers
but yes, Kindles predominate for various reasons: e.g. Amazon have the largest/cheapest book store and the best end-to-end integration. Amazon spend a lot on Kindle adverts, I have never seen one for Kobo...