All this craziness can easily be avoided, there's no need to spend €748m to live in this neighborhood. Here's a villa with a better view though albeit smaller , that you can rent for only €10,000 per week! You will have the Russian Billionaires way back behind you wondering if the purchase was really the right price to pay!

http://www.rivierarentalguide.com/properties/the+corniches/villefranche-sur-mer/villa/253/