I live in southern Florida, and this area was ravaged by hurricanes in 2004 and 2005. Prior to those storms, there were a certain number of roofers and contractors in this area. After the storms, everybody and his brother was suddenly a roofer, and more were flocking in from out of the area.
Many established businesses here, probably hoping that continued storm activity would keep them around. When that didn't happen, a lot of those newcomers' businesses failed. But, many of them became fairly solid, and their presence had a negative impact on a lot of those that had already been well-established, and quite a few of those failed as well.
I could see that taking place all over with a lot of people who entered the gun business in the last six months, if the frenzy were to drop off tomorrow, or in the last six-to-twelve months of a frenzy that continues past then.