There's no price for the TIs at Thomann right now, but 2 other big german music stores (
www.musik-produktiv.de and
www.musicstorekoeln.de) list them at 1699 Euros for the desktop and 2259 Euros for the Polar and keyboard versions.
American customers should not complain too much about prices jumping to $1900. Just remember that 1699 Euros is about $2275 right now...