I may have the cure to the camera gear buying addiction. I just started photography and already have a full collection. After my last purchase, the 16-35II, I took on another hobby of traveling and backpacking. That seem to have cured my lens buying addiction...
except it got replaced by something else. Now I'm spending more and more money on figuring out how to best carry what I need. I just purchased a $400 Kata backpack, and I'm now looking at a much larger F-Stop Satori EXP. I just spent almost $4000 on backpacking gear and clothing just from the beginning of the year and I'm just barely starting. See, that my great cure, move on to something else. lol
I still need to get the 17 and 24 TSE but maybe after Canon released a high mega pixel camera and I got better using my current gear.