Until I can buy a REAL Thompson, then this one will do just fine. No FFL issues, cheap ammo, and I can use it in a somewhat prototypical fashion. Heck, the most expensive airsoft gun I'm aware of is a replica BAR, and it's only $1200 or so. If I had a REAL Tommygun I'd likely only get to fire it 2-3 times a year.
I'm going tomorrow, maybe I'll get some vids to post.
On an somewhat unrelated note, my airsoft gun is a heck of a non-lethal weapon for home defense. You will NOT advance through the hail of BBs this thing can fling at your face (or other soft parts). Unless, of course, you have a pretty high pain tolerance.
And if you do, we've got that eventuality covered as well.