Bob, the trade up policy does go longer, however, the longer you wait the value of what your trading goes down. This does not make sense to you? If you sell a car to someone that is 1 year old, compared to the same car that is 5 yrs old, the new one will be worth more on a trade.
Also, why would you cancel your order because your room MIGHT suck? The problem with room acoustics as nothing to do with Axiom speakers, all speakers are affected by your room, this has been the case since God created the Earth.
