1. The market is saturated. I don't know how many Glocks they've made since the beginning in the 1980's, but it's a lot. The police trade ins, the "rebuilds", about the only ones that get destroyed are the ones that some cities confiscate. I still can't believe you didn't get more bites than that though.
2. There are a lot of kids out there not old enough to own handguns on their own, but instead of getting the bb/pellet pistol like we did when we were kids, they are apparently getting daddy to get them airsoft.
3. There are a lot of adults out there who never grew up.
4. I wouldn't want to be a LEO these days, with so many young, and old people with so many almost exact replicas of real guns. There will be people killed holding these things up in the presence of law enforcement, and if the LEOs fire their weapons, they will be scarred mentally for life, when they find out afterwards that the gun wasn't "real".