I guess I have a warped view - I always figure product should be bought and sold for what the market will bear. Obviously MSRP should reflect that to some degree, but is otherwise useless.
A good example would be pickup trucks - before the 90's a truck was one on the cheapest vehicles you could buy. Then they became popular and prices went nuts ( I was able to sell my '88 S10 10 years and 190K miles later for practically what I paid for it new). The auto manufacturers made a much higher margin on trucks for many years, and probably still do.
And be honest, when selling your house or something on CL, you look at what others are listed for and base your price on that, not what you paid for it or the book value - and probably with some haggle room built in.
Not siding with the dealers - and I realize our free market system is not what it used to be and has many issues. But I am not worried what margin the dealer is making if I am getting what I want at a fair market price - and that can only be determined by shopping around.
The market will vary by many factors like location, material costs, model, etc - if the subcuts are all of the sudden popular with a bunch of newbies, they will command a higher price, yielding a better margin, while big Ag tractors may continue to go at a much more modest margin.
A good dealer will price his stuff competitively and the bad ones will disappear. Pricing will fluctuate with supply and demand - And I guess I'm just fine with that.....
Just my $.02