If you want to ride the thousand, you ride the route that the organiser has prepared or not ride or find another 1000 that meets your requirements. Yes, multiple loops are harder; we had a pretty tough time on the New Forest 1000, but it was a great ride put on by the organiser (John Ward) and was just a case of getting your head together and go out there and turn the peddles each time you came back to the central control.
I think on all long rides no matter what the route is, there is always the temptation to pack, but it's up to the rider which choice they take. The Sydney Melbourne Alpine was a straight out 1200, plenty of people packed; 60 started and 30 finished!