Good points. My brother and I built a couple over the years, the biggest advice i can give is to locate it away from population so you don't get noise complaints. Get a lawyer to write up a good liability waiver to make everyone sign. Property needs to be secured, it helps if you have a decent size bulldozer,. ramsteer and a few other pieces of equipment for maintenance. Lots of big tables rewards skill and balls, but won't hurt little Johnny if he doesn' clear it on his 80. Good dirt is key. We rented 11 acres that was an old corn field, next to water. After we gave up control (retired from ridin), the the new guy built a pretty sweet irrigation system for keeping the dust down. Its not cheap, its very time consuming, and you still are likely to have people fighting you, so the more remote the better. The last one we built in 2000 is still going strong, and oddly isn't far from some high end subdivisions. 2 minute laptimes,not a single rock. I miss racing.