I can relate.. went with Grey.. kept having second thoughts on color while waiting for delivery.. now that I've taken the delivery, I actually love the grey color. I think this car looks much better in person than in photos. Only complain is that it is a bit too understated to the extent that it goes completely unnoticed.. makes me wonder if I should have gone for electric blue. But hey, there is always that 'another car' that we still want for.. so may be a shark blue GT4 few years down the line for me.
I think this is very normal for things we are passionate about. My other love besides cars is guitars.. and it's the same story there as well