You're not. I am sure many people think they are overpriced. In fact, all art is overpriced to those that don't buy it and priced just right for those that do buy it. And, it's considered priced low for those that sell it for a profit later or actually enjoy it on the wall.
Personally, I thought overpriced at first until I realized they are limited and hand made. If the seller mass produced, then I wouldn't have bought any.
I keep this in mind.... How many people have something to show for their bitcoins (other than possible profit)? This is why I have shirts, sweaters, Casascius coins, mining gear, stickers, robots, paintings, posters, magazines, and even a neon light all specifically bitcoin related. So, having something to show for your bitcoin is as important as bitcoin itself. I think it brings value to bitcoin.
Agreed and I think the art is pretty cool!