Chris, as most of the previous replies have indicated(and this isn't something that's merely "subjective")the speakers are the components that make a difference. One of the great things about today's audio scene is how we can get audibly flawless performance from players and receivers(certainly including your 435)at quite modest cost. Besides the speakers you have to consider that the acoustics at the dealer's demo were probably more nearly optimal than in your room at home. So, consider speakers and don't be overly concerned about the electronics, but also consider room treatments and be sure that your present setup is well-calibrated.
