My wife and I went through the same process, we decided to go new as we could order exactly what we wanted. The process has been quite exciting for both of us.
As rbryan4 said they hold there values for us a new one with everything we wanted was about $10,000 over used. With the American dollar the way it is against the Canadian dollar you get about a 30% discount
You will find lots of good information on this site, good luck with your decision.