I certainly didn't own every issue, but I had probably 40 or so. I used a lot of stuff from them. I really wish WotC had let Paizo continue to publish Dragon (and Dungeon). I'm still confused as to why they yanked the license.
Then again, with how 4e flopped, Dragon may have gone by the wayside in any case. I still loved reading the articles on monsters, magic items, and Ed's Forgotten Realms stuff. A lot of the fiction was actually quite good, as well.
Kobold Quarterly sort of took up the banner, but it is also going defunct. I think trying to split their magazines between both Pathfinder and 4e created too big of a divide, causing a good chunk of each issue to be less useful to any buyer.