Matt - Yes, there will be some comparative notes between the M100's without a sub and the M50's with a sub.
As this concept of trying out various product continues, other aspects will also be discussed. For example, let's say a guy is looking at home theater, and has $2500 for speakers. He typically buys his $2500 system, and in two years, he wants more.
The Axiom trade up program is rather unique. I ran an example on this, and a guy with a pair of 2 year old M50's would get about $600 of his $998 back towards a pair of M80's if he wanted to trade up.
If price is a consideration, future retained value should also be considered.
Who knows - maybe I will be trading the M100's on a pair of LFR-1100's next year.