Jason B. Jones, who pens a column on GeekDad at Wired.com, is clearly a Boba Fett fan. He recently penned "The Many Faces of Boba Fett," soon after a comment about the slow-to-arrive mail-away Boba Fett.
Pack Rat Studios is testing this question, with a four-figure line of alternate Boba Fetts: World War 2; medieval; on Hoth; and, my personal favorite, steampunk:
All four figures are currently available for bidding on eBay (direct links: WW2; medieval; Hoth; steampunk). As the listings say, the figures are for adult collectors, not real play.
WW2 sold for $49.75 after 17 bids; Medieval, $81.00 after 15; Hoth, $23.01 after 9; and Steampunk, $31 after 10.
For more, check out our listings of Boba Fett custom action figures in our fan art section.