I bought it too because of you :) And that's after my latest kobo shopping binge (you know kobo has 50, 75 and 85 percent discounts on all books, right?)
That's what I plan for the future - for the moment I'm using a kindle - so it's one of those "til this device breaks" things. I'd not be surprised if, when I upgrade in a year or so, everything is crackable. (And I will be SO pleased. I'm not a fan of "only works on X device" media.)
I didn't know that about kobo - I'm already invested in kindle, so I'm amazon for the moment - or until I upgrade my ereader anyway!