I can't agree more about the tag dropping. The F4U4 was probably only discernible from other F4Us at close range. As was the Tempest from the Typhoon. The Ta152 had a much longer wingspan than 190D9s, so it was probably easily picked out. Point being, most of our perk planes are variants of other planes, so not easily discernible from their counterparts. The perk beacon essentially nullifies the price paid for the planes.
I would, however, like to see the plane and variant when someone shoots me down. So the KM read so, "Fancy shot you down in a Fw190A-5". Get used to that fellows, you'll probably be seeing that a lot.