Yes, that was another thought of mine.
As part of the LQS plan, they offer full purchase price trade in value for 1 year on an upgraded machine. It sounds like some LQS offer that policy routinely but I've heard a few bad stories of people buying a new Symphony and 6 months later wanting to upgrade and the trade in value offered by the same LQS they bought it from was only $800!!! The latter is probably how my LQS would be.
Anyway, I don't have upgrade on my radar so that wouldn't be a driving force in the decision.