It's fun knowing that you can put a hole through 30-40mm of armor plating (not just steel).

If you live in the middle of nowhere, there's no need to bother people at a range with the noise and blast; plinking wrecked cars out to a kilometer or so is a lot of fun. Firing less than a few is also more than enough for fun. But then, I'm the type of person who'd buy a [Norinco knockoff of a] RPG-7 + rounds and shoot up cars too in the middle of nowhere [if it were legal], for fun.
I'm not wealthy enough to get a PTRD [or something similar like a Boys] though, but that's ok.
Rent it then. Or hang out with a buddy who has one. Large caliber is fun the first few times you go out. The novelty quickly wears out. After about 2 years I went back to the shop and traded my .50 for other more practical toys. Took a $350 loss of course.
I speak from personal experience. Save your pennies and buy an AR or a Rem 700.