He has said before that a mill costs 'more than a new car', which most people would assume means that they own one.
The proper piece of equipment to manufacture this CAN cost more than a new car, but doesn't NEED to. I know, I own one, it was new and it didn't

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BTW, I am not taking any sides here. I know what it's like to have been on the receiving end of this a couple of times, once even for a similar product. The interesting thing is that a good portion of those that make statements like "I would buy one if it was only $600" often don't even have $60 of excess income for such things, let alone 600.
If I could build my own car, I wouldn't call up Ferrari and tell them "I would buy one of their $200,000 vehicles if it only cost $160,000"

If you really feel strongly that someone is making a mistake in their business practices and sincerely want to help them onto the "right track", try a heartfelt email. You also might want to include some justifications for your views if you expect to be taken seriously.
You might have a better effect that way and you might be doing them a real favor. Then again, you might just get ignored. If you are right, they will see that in time. If not, then it's a good thing they didn't listen to you.

But it's difficult to see some of the comments in this type of thread as anything other than "pack mentality product bashing". Is it ok to say "I don't like it and I think it costs too much"? I would think so, free speech and all

But when you start attempting to analyze a business model without even knowing what that model is, solely in an attempt to justify your statements (which you don't need to do if it's your opinion), I think certain lines are being crossed that probably shouldn't be.
These items aren't shoes, food or toilet paper. You don't
need to buy these things. State your opinion, move on and vote with your wallet. It's the only real power you have as a consumer.
My seven cents

RandyT