How been looking at a three night stay within the South Rim Park starting in January. Checking all in-park accommodations within the park, on their official reservation site to date I have only been able to find one three day block in 2014 in October. Is what was the recommendation of planning 6 months ahead too short and instead one year is now becoming the norm or am I missing something. Does not appear the economy is hurting so much when I see something like this; which I guess is good. Thanks.