Well, I went and stayed at Great Basin State Park. The ingress and egress is horrible. I rode my bike out relatively expeditiously, but waited 4 hours at Fort Ord for my family members who did the shuttle service. Also the track was literally melting in front of us. Laguna had the track repaved because it was so bumpy, and wound up suing the contractor and having the job done over. Needless to say it was over 100 degree temps and they were selling water for $4/bottle. Finally on race day they gave water away and that was stand up on Lagunas part.
I would go back if a bunch of guys wanted to camp/RV on site. That would be fun.
Indy is much lower cost and much easier to get in and out of.