I just played around a little bit with Google Trends searching things like "70D error 80" "60D error 80" "70D problem" "70D fix" etc. The search term "Canon 70D error 80" shows up pretty consistently for the past 3-4 years but substituting 60D, 80D, ...
I bought a Canon 70D refurbished almost exactly two years ago. I feel pretty comfortable buying refurbished because I figure that whatever's gone wrong has already happened and they've opened it up and dealt with it. If anything it should be more rel...