Adrian - Luckily I think the "longest course" craze is going downward. I had one course that asked to be the longest in TX at over 7600. Somewhere in the process they stopped caring, but it was too late! Still 7600, not sure if its the longest.
To be honest, I believe 7600 is required to test the very, very, very best players, a la the top 20 distance drivers on the PGA Tour, and maybe 2 players in most any other field. How many PGA Tour pros are really competitive at that length?
Even NCAA courses are set up at about 7250 to protect the bottom half of the field. The general feel is that these guys hit it further than tour pros, but its really only the top 10% of those golfers, too.
Probably the best thing that could happen for golf is if Tiger adopts and "old man" smooth swing, drops from 310 yard average to 295, and still wins more tourneys and majors. Sorry to go OT.