On my Radar: Hermes Iris Birkin . .

I've tried and tried, but I cannot get the Hermes color Iris out of my mind.
I'm in the process of selling A LOT of my collection as i'm trying to keep my collection small, but classic. I think iris will be a perfect addition to my collection.
Now the toughest question of all, GOLD or PALLADIUM Hardware???

(all pictures from ebay)