I've paid $3K to rent an Audi R8 for the weekend. I currently have a Model S reservation. I'm cool with paying $300 to see if I want to spend $80K on a car (0.00375% of the value of the vehicle).
The Roadsters sold for that much, but are no longer on sale. The Model S price is a little over half that. You can get above $100K with the right combination of options, but most sales probably won't be for anywhere near that.