I had bordeaux in my silver 550 it was beautiful and will look brillaint with GS. Go for it. Toying with the idea of the same again on an Italia
Its a beautiful color combination. I think if you are truly worried about resale then you have to give strong consideration to a red car. And also make sure you get the shields. Other thoughts are you could decrease the residual value and thus have less potential delta on the trade in/ resale. But of course that will increase your monthly payments and also probably increase taxes paid (not sure if in CA you will pay taxes on the lease payments). I think the best advice really is to get what you want because you only live once and you can't figure out every contingency.
Probably too late at this point to make an interior change. We have Silverstone Grigio and Cuoio in our late 430 spider - a decision once made was never (ever) regretted. I would like to say the interior is beautiful, but "classy", "rich" and "tasteful" describe it even better. Picture a deep, darkened tan, very rich looking. Bordeaux would also work nicely with your exterior choice - so don't lose any sleep on that one either. Just don't change to a black interior - at least not with Silverstone Grigio. All the best . . .