The childish thinking is about thinking if a few people don't buy the company will stop doing what they are doing.
If there's a line, your prices are too low. Period. If people line up to buy BMWs, the price for BMWs are too low, and they (BMW) should soak people for however much they can. What part of that is childish?
If many people stop buying BMWs, they're gonna have to adjust prices or cut component costs.