I don't understand why this concept is so hard for everyone to understand.
It's a regular old car show that's being held at a venue, just like any other. This one happens to be on a really nice track that most, including many of us, would never have the opportunity of even stepping foot on. If you're not aware, this isn't something new, either. A LOT of show holders will rent out stuff like this to hold huge events, and all you haters will never believe this, but fatlace and stanceworks have a HUGE following where it's probably more than necessary.