Name your price

I found this posting, entitled How Much is that Artifact in the Window, on Design Observer to be interesting. So many artistic people become graphic designers because they want their work to be accessible, not framed preciously on the walls of an expensive gallery. Heller explores the intricacies of pricing graphic works produced in large runs, and it seems that many of these works are priced according to the same guidelines as fine art (fame of the artist; scarcity; place in design history).

How much would you pay for this Milton Glaser
Dylan poster?