Regardless, I expect Canon to drain my bank account just like they always do. Something they are very very good at!
I'm still using my 10-year-old and 9-year-old Canon dSLRs because none of the updates since have been particularly interesting. I have several friends with Canon dSLRs, and they are similar. One is still using his 40D, one is still using his Rebel XT, one is still using his T3i. I'm still using a 20D, 5D and a T2i at work. I've watched every Canon release carefully in the last 10+ years.
Depends on what you shoot. For those of us that shoot sports, wildlife, other fast action, then we would be missing out on a VASTLY improved AF system in the likes of 1DX and 5D3. The 7D doesnt even come close to being able to track as well as the new systems can. If you shoot landscapes, weddings, products, then all of that doesn't really matter.
I am honestly very tired of dealing with the 7D system which for what I need is really lacking. I have found myself using my 5DIII and just dealing with the crop. I cant afford to spend 5K on a wildlife trip and throw away half of my shots because the AF cant cut it.
I am envious of those like yourself that have been able to keep the old tech working for you.