Happy to be an early purchaser of the R5 albeit at a premium price. I did get a bundled spare battery and sold the strap so some discount overall. Deposit was down with digidirect in Feb 2020 as I expected to go on a Scandinavian/Iceland holiday in July which didn't happen.
I had included the RF100-500mm in the R5 pre-order but cancelled the lens as it was just too much especially as the R5 was more expensive than I had budgeted for.
In September, I pre-ordered the RF100-500mm when they had a 15% off sale and got it 2 weeks later! I missed the 20% off sales but also got the RF70-200mm @ 15% off. Happy camper overall

I don't have any compelling reason to buy another RF lens in the current lineup. Even a RF replacement EF16-35mm/4 or EF100mm macro couldn't be justified at this time. If my EF24-105mm/4 gets broken then the RF version will be perfect though.