It is actually a good weekend to have it, and yes, a lot of competitors enjoy the fact they can enjoy Thanksgiving dinner with dieting.
However, both in Colorado and in California, there is one more NPC show, held on December 1st. In California, it is the Excalibur, held in Culver City (Los Angeles).
And of course, if you are compeeting for the Ironman and Arnold next year, you have already started your diet for those competitions, both in NPC and IFBB, and that is a lot of competitors.