I had a dealer that tried to push me to buy a K system. I asked him whether or not he owned one. He said no, that it was too expensive. So I asked him why he's asking me to get one. I told him that I'm happy with my 4K disks and fine with ripping them into my Zappiti system.Right, using that sort of language is part of what gives dealers/installers a bad name. You tell them "oh, that device isn't good enough for your cinema room" and then a year later they go to Target and buy one, plug it in and boom - you're the crook who made them buy a $10K+ system vs the $150 box, and you're never trusted again.
Those of us who value the highest quality are in a drastic minority of people who can see/hear a difference. Most of the folks out there will either not notice or barely notice the difference between K and ATV.
Using the "it's not good enough" line is a bad sales tactic. "It's not the best available", or "with the investment you're making in the rest of your system, the ATV won't utilize it to its fullest extent" is a much more effective line. It's honest, and 100% true, and it can be backed up.
I ended up getting a K system later, but it's not because of him. It's those Super Bundle Sales that got me intrigued.