Montgomery County / Dayton Ohio SWAT now has an MRAV. Supposedly $200,000. I guess the medical bills were more last time they hit an IED though... Oh wait, that never happened.
Are you sure those full-autos were pre-86? Usually they are DOD transfers. A Sherriff who is in a club with me just requested some. DOD gave him one for each full time officer. No training or anything like that, just mailed him ten full auto rifles at no cost. He has had them out to shoot a few times. My local PD and Sheriff office also have them.