We love our Vermicular Musui Kamado, and use it frequently. Also, as part of the cohort that can afford a Komodo Kamado, we did not blink at buying a new Vermicular Kamado (base) after our original touch display failed after four years.
They may be Japanese, but they're not Toyota. Anyone who is on the fence over price needs to accept that the $340 (USD) Kamado base is potentially a purchase every three years. If someone's reaction is "screw them!" I understand.
While I can be dispassionate enough to repurchase the base, I'm also fairly pissed off that they didn't at least volunteer a technical description of what is typically wrong, and what they'd do under warranty. Although, my own experience is that they replace rather than repair. While I appreciated the new unit, this is how we're destroying the planet.