I would recommend that anyone wondering about bang for the buck differences between sanction bodies, to go and look at the number of sessions and length of them between SVRA and others. I don't know about many others, other than PASA and SCCA, SCCA's appears to be about 1 hour to 1.5 hours on track for a single race weekend. SVRA's is nearly 3 times that. If I tow 2000 or more miles to a track that I have never driven, that is important to me, YMMV.