Hi DustyRock,
It looks like registration is $75. 00 for 1 person, now. With that you get a really nice buffet-style meal, sat. night. They usually have a couple of cold cut style evening meals, also. There are quite a number of seminars, which, are very informative. Last year, they even had a gentleman who I believe was the head engineer in charge of the Cummins Engine Plant where our engines are built. There should be 2 Dyno Days, near the Las Vegas Speedway. There is drag racing at the speedway, Fri. night, which, is not part of the May Madness but, is still available. There are lots of "Diesel Heads" to talk to, which, is a lot of fun. Personally I, probably, enjoy that more than anything else. There are product vendors, also.
You do have to register and are given a name tag, which, you should wear. Probably would be embarrrassing to be denied access to something you would really like to see.
Personally, I think $75. 00 for 4 days of activities is a bargain. That's less than $20. 00/day. That includes, at least, one good meal and usually a couple more. Chances are you will pick-up some valuable tips which can save you some money (I got a tip one time on the TDR that saved me $196. 00 or almost 6 years worth of subscription fees).
The people that are involved in May Madness really work hard to put on a great show, and they do. So far as I know, this is the biggest and best show out West. If you live in the Midwest, you have Schied's Diesel Extravaganza (in Terre Haute, IN) and Thunder in Muncie (now, Thunder at IRP), both in Indiana. Both of these are great, huge, diesel events (I've been to both). But, out here, we don't seem to have as many larger events. May Madness is the best one, that I know of. And I'm really looking forward to going, again. This will be my fourth time.
I hope this helps you make a decision. If you have anymore questions, I will be glad to try to answer them, for you.
Hope to see you there!!!
Joe F. (Buffalo)