Wow everything above is true, we have been eyeing the 3670 for a couple of years and of course the Landmark. Unfortunately money talks, we looked, dreamed of the Grand Canyon, but still liked the 3670. After visiting a dealer that had all three models we decided on the BC 2011 3450 Ts. We found that this model incorparated several things from the more expensive models. In fact we could't believe we found our perfect rv. Even if our pockets were heavier, I think we would have still purchased the BC after seeing this new model. To each his own!