Gee Ian, lighten up! Everyone knows that the minute a collector buys a tank some nutter with a gut full of whisky and a manic dislike of government property nicks it anyway.
Owning a tank is just the same as owning a massive stinkboat or having a mistress, something that costs bucketloads of money and is used rarely, but oh the ride....
When I win lotto I'm gunna buy a tank, I've already got the whisky...