I don't even consider it 'selling out'. I make art for the same reason I write stories, and made music (once upon a time); I love the idea of sharing my creativity as far and wide as possible. 'Art' enriches my life, whether it be the largest and most expensive print or painting on my wall, or the vintage glass bowl I bought at the Salvation Army store, for two bucks.
Recently, on another venue, someone chose and purchased a dozen of my images . . . printed on mouse pads! I was excited by the idea that 12 people would look at one of my images, probably every day.
Beyond income for the artist, what else is art for, other than to be seen and appreciated? If anyone would like to license my images to print on umbrellas, or bow ties, or wallpaper -- or a jet -- please contact me using the readily available form on my website -- http://www.art166.net
That is all. ;-)