Keep the 850. I've always wanted one, too. I sometimes think of keeping my 911 and getting an 850 !
There is one nearby sometimes, a V12 that a car dealer drives for his DD. When it comes for sale, I'll surely consider buying it!
A car with history should be kept if possible.
I almost lost my mind the other day and put my 1948 Chevy pickup for sale.
What was I thinking? .... well, I guess I wasn't... so, not for sale now