I loved going through the discussions in this topic. My point on initial R launch is that Canon released flag-ship lenses with mid-range/prosumer body. Not the best combination to buy both. Questions would be:
Where is the pro body for $$$$ lenses?
Where are the prosumer and consumer grade lenses?
Is there any benefit in the lens eco-system? If not, why the hell to switch if you use 5d or 6d?
What will be the timeline and roadmap?
In the M line, Canon was terrible and still is in listening to itscustomers and showing some light on the ecosystem.
I personally remain very pragmatic to invest in a new system coming from Canon to the point I see all the components I need.
People look at lenses before buying into a system. Back in the “old” days, when I was in the commercial end of the business, people used to come up to me all the time, and ask what cameras I recommended for them. I asked what they were looking at. Very often they would tell me Canon or Nikon. I asked why, and I would often get an inexplicable reply. Because they make 600 to 1200mm lenses (which they did, back then). what?
Seriously, how many people starting out were going to buy a 600-1200mm lens? How many people buy them no matter what they do?
This is why Canon and Nikon come out with a few high end lenses. So Canon has two lenses that few are going to buy - now. But looking at a system, people look at the best, and often most expensive lenses, even though they do know, deep down, that they will never buy them. It’s asperational for them. If Canon just came out with cheap to medium quality and priced lenses at first, a lot of people would think that all they were going to produce, and there would be nothing for them to aspire to, or to brag about being available to them.
The rest of us know that Canon will come out with cheaper lenses for these folk, and we also know that Canon will come out with a body that’s worthy of these lenses. So we really don’t worry about it.