Started with 2 Kindle1's - loved the first one so much, had to get a refurb back-up just in case the cat succeeded in her battle to reclaim the lap.
Then I got a K2 - loved it. Was on the verge of getting a refurb K2 for back-up when the DX came out - got it & loved it. Will probably get a refurb DX for back-up when they become available again (probably soon if the DX International rumors are true).
I just can't live without a Kindle. Will probably gift the K1's this year to convert even more readers to the ereading experience.