I think the problem with this episode's Math with Nate is that all of your potential customers believe it cost you $2.15 to manufacture your Motörhead frisbee, not $4.
I'm certainly not a NIB Stern customer, so I won't pretend to speak for them, but it does seem from my outside view that they're getting more and more pushback as prices go up and BOM/content goes down. Has that reached the point where it actually reduces sales? I guess we'll find out when pricing for the next non-vault model is announced.