I quit tanking all together when the Tiger II came out, now with the JagdPanther people just sit on concrete with their big guns and bail if any plane comes within 5k. There is no point to tank if someone wants to just sit on concrete and if their turret gets knocked out, land.
Adding 2 minutes or so means they won't get to escape the obvious loss of perks, which is ironically stupid since I had over 10,000 gv perks when I quit.... dunno why continue continue to park on concrete.
The vast majority of palyers don't have thousands of perks in any category at all
And against that background there are two main problems with highly perked tanks that mostly limit their usage to defensive 'concrete-sitting'
First, the high perk cost is reasonable and necessary when looking at tank vs tank performance. The KT and the Jagdpanther are really that far above their competition to fully justify their high price.
But they are as easy prey to any plane dropping a bomb as a Panzer IV or an M4. They are sitting ducks attracting a lot of bombs without any real means of escape or killing the attacker, totally unlike perked planes. (The usual reaction when a KT is called out: Someone brings a bomb, instead of a KT himself to slug it out)
And hardly anybody with only relatively few perks is inclined to risk them that way if he feels he doesn't even have a chance.
Second, the low probability to get back home (and get your perks back) when you are using your tank offensively, i.e. spawning to a hostile base. No matter how good you fight, for all practical purposes (there are always rare exceptions) your tank and the invested perks are already lost the moment you spawn in (unlss you horde by air & ground and quickly take the base).
