Wow. That wasn't nice:
"I try to remind myself that our vendors did not take college business courses and then research to find an unfilled market."
Their business sense is often lacking.
While I cannot speak for the other vendors, I personally graduated from Florida International University with a Bachelors of Science in Education (albeit not business) & became a teacher. Why would you make such an unfair judgement like that, not knowing?
With regard to Dennis & Adam, I've never experienced even the slightest difficulty reaching either of them. They pick up their cell phones when their not 'on the clock' as we say.....