There were many reasons, but the main being I couldn't draw. My college drawing teacher also made sure to let other people know I couldn't draw. The art community, no matter what medium, has a slight problem with elitist behavior.
I went to Montevello, which is considered one of our top liberal art schools in the state. They had outdated equipment and teachers. I went in to learn composition and layouts so I could get a job in magazine design. They teach nothing like that. At all. I did have a great 2D art teacher that put up with us splendidly. She eventually found a job up north, probably at a school that would pay her more and appreciate her talent.
But all of that aside, I love Michael Parkes. He is sorta an early nineties surrealist/Italian Renaissance artist. When I found out that we would be doing short essays on a favorite artist, attached with some poorly copied pictures of their work, I promptly submitted his info before anyone could take it. The teacher had said he needed to check any artists he wasn't aware of before giving the okay to move forward. After all of our submissions he went to the back of the room where is office was and looked up some of artists. After a couple of minutes he stormed out with a glare in my direction, "Really?! That's disgusting." This was said in front of the whole class. Needless to say I turned red, and was unsure of what to be embarrassed about. He eventually pulled the "joking" card, but I could tell he was serious. I never really recovered from that moment. I still don't understand why some people are so weird and unaccommodating in the art world. People have preferences, even if it isn't what you would call cultured, or fine art.
Andy Warhol can suck a can though ;) (That opinion springs from the way he treated his people, not his art, but you can look into that and form your own opinion) .