Do you have minneapolis.tv? Minneapolis is more prominent of a city than St. Paul. Evidence: Estibot puts stpaul.tv at $680 and minneapolis.tv at $2,600. At reseller prices I'd expect stpaul.tv to get about $60 to $100. You are getting an offer at the high end here.
---------- Post added at 02:26 PM ---------- Previous post was at 02:06 PM ----------
The same twin city value effect is in place for Dallas/Ft. Worth. According to Estibot:
dallas.tv $3,200
fortworth.tv $770
ftworth.tv $330
stpaul.tv is analogous to ftworth.tv
You may have simply chosen the less attractive city to register (that is, if you don't also own minneapolis.tv).