I'm not sure what you mean about the "comfort" level brotha. Are you referring to track facility, safety, or spectator lodging, viewing, etc? You would be hard pressed to make a case against Laguna. First of all, its near one of the most beautiful areas of Cali (and Cali has a bunch), as you correctly said, it would attract tourist. Though your attendance levels seem to indicate its still a niche market, and the truth is, its about the motorcycling popularity that everybody in the US must deal with. They also have enough high-end hotels near by to make even the finickiest of Euros happy. As far as viewing, you can sit on the hill (or as we like to call it, "Jumkie's rock") and see 75% of the track. And of course, the beer is not limited to 3% Alch by Vol. hehe
Miller, the track and garages are top notch. Making any Euro paddock fly proud. But the track is situated in a small town (Tooele), with little to no high-end lodging. The best are in Salt Lake City about 30 minutes away. The track view is great because it’s very flat, so if you get a grandstand seating, you see a good percentage of the track (not too much in elevation change). So the viewing along the fence is also very good. However, the beer is restricted by law to 3% (bad for the "comfort" index). BUT... Miller is close enough to western states for peeps to make the trek if they had too. It would attract many who would find it hard to make the trip to Cali, which stands on the edge of the country, to one more inland, perhaps making it more travel friendly from neighboring states. Here is perhaps the biggest problem for Miller: their brainchild and creator of the track, Larry H. Miller, died. He was the man with the vision that could take this facility and the events it would host to new heights.
What were some of the attendance figures for the WSBK event? I suppose if its just attendance, I think they could make it work. But I doubt for said reasons, that Miller Park could pull GP from Laguna. And, my personal opinion is, it shouldn’t, because of the history at Laguna. But its just too bad, because Miller is such a great circuit. I contend that Laguna should not be pulled and they still try and push a GP at Miller. But it would never happen. JohnnyK said of the Austin GP, that it represented a big FU to the East Coast. This would make having two GPs on the West all that more difficult (sadly for the wrong reasons). That's one of many advantages that Austin TX will have, its in the middle of the country (though that country is 3000 miles from coast to coast). I've never been to Road Atlanta or Road America (<< another marketing speak BS misnomer at the level of calling something "Circuit of the 'Americas') but until the East makes something GP ready, then they are not gonna get a GP no matter how many people live there.