we got our 97 venture 600 with 5700miles on it for 1700 this fall.
it like most 2 ups has standard electric start, reverse, mirrors and of course the 2 up seat and 136" track
2 ups always go for more than a 1 up due to the ESR, but the longer track and other required 2 up stuff adds to it as well.
that said, with ESR, it should go around 1400-1900 as the NADA site shows.