Yeah, I could see that being a problem...the prospect of having the BG gathering with Z06's or C5/C6's seems like there'd be overflow crowds everywhere....too bad we can't drum up more interest from the C4 faithful and make it a big enough C4 event to stand on it's own.
The West Gathering is and would be compelling by itself, what with the pull of Vegas, the Standing Mile, etc....wish it wasn't almost twice as far of a trip than BG.