Isn't coming in and out of vogue connected with money in a way? I mean, if a category of guns has a property that is considered a disadvantage, say, short barrels, the price of these guns will start to drop, and, like with a downward trend on a stock exchange, the falling prices will mean people start getting rid of that assets, which in turn causes a further drop... until it reaches some minimun point, and some buyers begin to realize, that if they choose a short-barreled gun, the gain in price, as compared to the same gun with normal barrels, would far overweigh the loss in desirability, and start buying more of these guns, which in turn causes an increase in price, which leads other buyers to think there's a new trend, which moves the prices even higher, untul they reach the point of unreasonability, and begin to fall again... See what I mean? Just wondering...
