WOW this is a great thread. So much legit content and also some comments that "didn't age well."
TESLA - Yes the one-price direct from mfr method works, but then they had to slash prices and certainly DID upset some previous buyers!
IPHONE - Definitely not all the same price, varies if you are buying it outright, adding a new phoneline to existing account, new account all together. Newest model versus previous model, both new in stock in store, very different price - depending on if you're getting it at the beginning or end of it's release
The cold pepsi probably the best analogy in the mix - yes you can see TRUCK MONTH great incentives on '22's as RAM wants to clear the lots nationally of those, moving on to 23's. 23's are the cold pepsi. 23 limiteds are the cold pepsi with rum (though, Rum & coke just sounds better)
Back to the original yes there are CERTAINLY a number of ways that dealerships make money. How each one chooses to balance their business for the best result in THEIR market (regionally) and the timing (how is the economy) is left up to dealer discretion, just like most businesses. Some restaurants set themselves up for high volume takeout, others - others can't take online ordering, grubhub, or large orders. Some dealers make their hay on parts & service, others on big used inventory in their region, others on premium vehicles and markups, others on volume. Luckily, today you have a lot more choice and more access to information.
End of the day, did you get the vehicle YOU wanted, that provides the right value equation to YOU? That value equation will have to weigh in the time you spent, the stress you spent, your perception of the truck itself, how mad your significant other is for the amount of time you obsess over your new wheels, lol.