I managed to snag it and Carcassonne 2 from a German company years ago for $5 each on a clearance.
MS had bought the rights to electronic versions of the games for use on their online setup (Wii I think).
These versions work wonderfully and make the game even more fun to play. To find them now, though, you'll have to either get lucky on Ebay or search the underworld of the internet. There is Carcassonne 2 (Hunters & Gatherers), Carcassonne (regular, no addons) and Carcasonne Deluxe (which has 3-4 expansions built in). Well worth doing. I actually contacted the company directly (Koch Media) and they regretfully had no solutions for me other than finding someone on Ebay selling one.
It's worth it though.