You can priced them at whatever you think they are worth, remember that some people are willing to pay $20k for a Harley.
The current record price was paid for a work from No. 5, 1948 by Jackson Pollock sold at US$140 million in 2006.
You can call me crazy but I think some "art" shouldn't even be consider art. I mean US$140 million for this?
I am an art lover, and my wife and I just spent some dough on our first original piece recently. However, I totally agree with the above statement - and I LIKE abstract art!
The guy who we bought our awesome painting from has a series of pieces similar to, but better than (IMO), the one you referenced here, for sub-$1k prices. Some of the smaller pieces are less than that even.
Geoff, I love your piece - it's great man!