I didn't want to teach anymore, fearing burn out, and so chose to place my primary economic burden on my work. Luckily, in some ways, I succeeded in that crossover. These days my work pays for itself, pays the mortgage, my lifestyle, etc. Museums like them even bigger and are a little more generous with funds. City councils like them massive, and if they believe in you then they have a lot of money to throw away.
Sponsors demand the world.
Everybody expects things to be very visible. The more money they spend the more visibility they want. Media art tends to be a little expensive, although I am not sure that is that much more expensive than traditional art forms. More likely, media art is a bit trendy and people want to be on the band wagon. That means the wagon has to make money.