...And I would think that the 6D - similar to the 60D - won't sell that well...
Where do people come up with these statements? As of 5 p.m. today, Central Standard Time, the 60D is the #7 best seller among Digital SLRs on Amazon. And, it has been in the top 100 for 885 days.
I wish I could find the sources for that. I'll keep digging over the weekend. The Amazon stats are curious since the 60D is also listed at #17. From all I know the 60D has been a dud for Canon as far as sales are concerned. Unfortunately, they don't give the specifics by model in their financial statements from what I remember so you'd have to find industry reports that are reliable (and those usually are not free). So for now you're the only one to provide data (as funky as they appear) and I need to find something better.
Actually, as I write this, the 60D occupies the #7, #17, #21 and #31 slot on Amazon's top 100 sellers. That's because each represents a different lens/body configuration. (#7 being body only). Amazon treats each configuration as a different DSLR for their rankings.
While Amazon is only one retailer, it is the world's largest, so it's a pretty good gross indicator of where various camera body sales stand in relation to one another. Not exact, but still a reasonably representative sample.