I went back to bestbuy today. I cannot recall a more difficult color decision on a phone in my life. Both black and orchid grey are awesome. Orchid grey looked especially good tonight. However, I do maintain that with the black version the bezels completely disappear making the phone itself look a little more streamlined/sleek/smaller. Black does look a touch plasticky, but I am sticking with it.
Also, I was looking at the regular s8 and what a package that is for people who don't want a bigger phone. They have squeezed a giant screen into a tiny phone and it really looks great. What a device for the masses.
I will be sticking with the + however!