Daytona would not meet FIM safety requirements.
Keep in mind guys, some of the information I provided was directly from the promoter himself. Everyone is dead on though, money is the main issue but the promoters aren't expecting to make a ton of money initially.
Not every GP brings in 100,000 fans. There are a couple that bring in less than 60,000 which Road Atlanta exceeded this year at the AMA(supposedly). GP will bring in more fans than the AMA, you can pretty much count on that. Remember, Europeans look for excuses to vacation in the US just like we like to go to Europe. Damn, Hockenheim was fun.
BTW, those support class races are alot of fun to watch.
The track is another big issue. Road Atlanta has improved its viewing situation and Road America and VIR with closed circuit TV would be good locations too. I would expect that one of those three or Barber will be the ones hosting a race in the US in the not so distant future.
Motorcycles are becoming more mainstreem in the US and all of the Jap manufacturers are pushing children and women with their promotions and that is a good thing. Children like racetracks.
Hell, Suzuki sponsored the football scoreboard this weekend on ESPN.