Matt, thanks for the wealth of good info.
Two questions,
1. What's the difference between 3 digit models that I get from my A$I disty like the 989 vs. the 4 digit models avail at BestBuy for example? Is it just a marketing thing so clients can't easily price beat (I mean shop) me, or are there other differences?
I ask because it seems like most of units we discuss here are 4 digit ones, and I don't know if CIs have access to them thru different channels or if A$I is out of the loop on supplying correct units.
2. You mentioned training and access to the CI Denon site. How can I become CI certified dealer? PM me if you don't want to post in public.

Thanks,
Mario