Why paintings are so expensive?

Related questions

1. Why did Van Gogh only sell one painting?
2. Was the Mona Lisa a real person?
3. Why was Edvard Munch a significant artist?
4. How did Gilbert Grape's dad die?
5. Did Van Gogh sell any paintings?
6. Why did Edvard Munch become artist?
7. When did Theo die?
8. How much is the Mona Lisa worth now?
9. Why was Edvard Munch famous?
10. Who stole The Scream in 2004?

Tags

1. #might
2. #manage
3. #likely
4. #painting
5. #become
6. #modern
7. #price
8. #during
9. #artists
10. #century
11. #paintings
12. #materials
13. #quality
14. #which
15. #depends
16. #period
17. #expensive
18. #achieve
19. #created