I've spent many years going to NAMM (not for the last few years though) and Cakewalk historically had a full on booth presence. And not just in a line of barely partitioned vendors in the "low rent" areas, a major presentation booth, video screens, demos, many staff, etc. I still wear my Sonar t-shirts picked up every year.
Obviously, somewhere in the food chain, a decision was made to not have a substantial presence this year. That decision could have been based on any number of factors to which we are not privy, and those factors could be anything from Cakewalk (not Gibson) assessing that NAMM wouldn't provided sufficient bang for the buck, to all the key people who would best represent the product had family emergencies.
There's no point in speculating. If Cakewalk wants to share why, they will. My (it's just a)
view is that for a store owner (I'm not one, but know some), the last freaking place I'd want to get a demo experience of Sonar is at NAMM. Loud and relentless total sensory and information overload. Hard to concentrate. And even if I saw a demo and could ask questions, a DAW like Sonar, Cubase, etc. is so complex, the demo would barely touch the surface.
Demo aside, as a user and fan, I would like to connect with the bakers at NAMM and see them have a presence. But I'm sure as heck not upset with them! :)