Question

why the artists use costly paintings?

Answer 1

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Actually they make costly paintings to earn good and enjoy their lives.

Answer 2

Explanation:

With plenty of demand for artwork, it is the supply side of the equation that often leads to outrageously expensive prices for art. Scarcity plays a huge role. Many of the most famous artists in history are no longer living. Picasso and Monet aren't painting any more pictures.

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