Actually a ZD 326 is closer in the 13k range. The ZG in the 200 series with air cooled gas engines are in the $8 and $9k range.
Kubota commercials don't come cheap but they are like tanks. In our part of the world a lot of the guys that cut grass for a living have gone to running them. Seems like you see folks trading other stuff off and getting them more and more.