Cost aside, famous art piece I would have in my house....this one is an easy one. I actually have 2 answers for you 8)
First, is my absolutely favorite painting of all time. Vincent Van Gogh's Starry Night
I think his work on this piece is beautiful, I just love everything about it.
Next, would be just about any piece from a Wyland Gallery LOL. Wyland is my favorite artist of all time, and I have had the pleasure of meeting him on 2 separate occasions.
Wyland, painting a picture at one of his galleries in Hawaii, July 2010.
Wyland and I after he signed my book of his. Hawaii, July 2010, I was 4 months pregnant with my youngest 8)
Me, with the painting, before we left the gallery for dinner. It wasn't done yet, but he was taking a break to sign some stuff.
You can see more of his beautiful work at www.wyland.com.