What is the most expensive piece of art you have purchased?

Question:

What is the most expensive piece of art you have purchased?

Best Answer - Chosen by Asker:

A lovely street banner from http://www.betterwall.com

BetterWall is your exclusive source for authentic street banners from museums around the world. When you buy a banner from BetterWall, you get a unique, dramatic work of art to display in your home.