Interesting point... on selling the 100 and the 24-70 for the 85. I really do need the Macro for ring shots and such, some people just love getting super up close on their wedding rings.
I really don't use my 24-70 very much but man the times I need it, like on the aisle I don't know what i'd do without it. Oh well, I just need to budget for it I guess. I had a really bad experience when I rented a 85L Mark I and it kinda soured me on this lens but I might have to give it another shot.