Banning all semi autos and AR's won't be much of a hassle for biden and dems but the problem is enforcing the law. Door to door check will only end in violence on both sides.
Why would the most popular rifle in America go up in value? In order for something to go up in value, it has to be either rare or one of a kind. If anything I've seen ARs go down in value. I know some folks will use the '86 MG ban as an example for how guns go up in value, but I don't feel that's the case here. Machine guns prior to the ban were nowhere near as popular as ARs have become. Personally I don't get the obsession with the AR on both sides of the argument, but then again I'm an AK guy so that's probably why.
I've done my best to try to forget about all of that old stuff. But, I'll promise you this, if I had one of the real ones in my hands again, it wouldn't take me long to remember how to make it go bang. I could even make it go bang a bunch of times.