I like visiting art museum in my spare time
Me too. I usually enjoy looking at costumes and drawings of various things
Sometime i do buy or collect what i can afford
So that must mean you mostly like private galleries, since they are responsible for salling art
Of course yes. and i love museums too. Some museums sells collectibles 
That must be expensive, because public galleries are mostly non profit so they only display selected art collections.
Okay.. . Which museum have you ever visited?
Metropolitan Museum of Art of New York is my favorite. Yours?