What “principle”You definitely have a point that I would agree with except that, in this instance, it is the principle.
It's a lot like saying one "needs" one type of firearm over another. While I don't have any experience with these slide fire stocks other than watching a guy install them at a gun show once (you buy it and he installed it for free.)
For purposes of feeding yourself via hunting or defending your life if the excrement ever interacts with the electric oscillating device - not to mention the every day occurrences, I failed to see the benefit of a slide fire stock. But, I'm not the guy you rely on to evaluate the fitness of the slide fire stock for any given reason (they do look like a fun way to burn up a lot of ammo for no reason.) So, just want you to know that I don't totally disagree with what you're saying. It was just the principle that is worrisome.
Supply and demand? I might could see your point if the sellers ghad one thing to do with the demand being higher.
Let me ask you, if the car you are driving is used in the next block buster movie and over night demand triples or more. Would you be violating some mythical “principle” if you sold your car at what someone would pay, no matter how stupid you thing the movie was?
I’ll go ahead and answer: you would sell at the stupid high price some movie buff would be willing to pay. Same principle, supply and demand. When the supply gets low, no matter what the reason, and more people want or need said supply, prices will nessesarily increase. It capitalism, and the American way.