the cost of getting pavement laid is insane though isn’t it?? I’d imagine you’d have hundreds of thousands into pavement for a track.
To build something good your easily into millions. Track, buildings, facilitys and on and on it’s no small task and it’s hard to see how it pays off. On the other hand if you built something really big and made it comfortable and accessible you might get enough hard core karters willing to travel and use it.