I'd say the 99% failure rate on Integra Receivers was what killed the line for us.
When nobody buys the protected line direct, the line has no choice but to go distribution.
It reminds me of Sony when I first started my business back in 1999-2000. I contacted the Sony rep for my area asking if there was any way I could buy the line. I wanted to sell Sony because their TV's and receivers were really good, they were viewed as the best by customers... The response was pretty much that Sony didn't want to deal with a dealer like me. No direct option and they were too good to sell via distributors. He threatened me with legal action if I were to try to sell sideways (an options that I didn't even ask about.)
Now Sony embraces disty's... Only after the line hit the skids and got their ass beat by Samsung and LG.
It's the circle of life in this industry.
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.