Where do you buy your Arduinos?

open hardware/open source, blah blah blah makers blah blah blah.

heh I always found it amusing that you can take an off the shelf part, mount it on a break out board and BAM its open source hardware for the community

back to the question though

I bought one arduino style clone from modern device (a bare bones kit) in 2007, last year when I needed a mega I bought that off of some china site, and surprise it was DOA cause god help they plug the stupid thing in at least once

other than that its too simple to plop an arduino on a breadboard, or perfboard, especially if it has a specific task and not as an open ended dev board