Well, I think that it is true and that it is not. In this era of specialization, I am not so sure that 800/1500 types really benefit from running 8000-10,000m (or even 6000m, for women) on the turf for four years in college, let alone 12,000m (or 8000m) after college. Similarly, I see marathon/road racing specialists as being better off leaving cc behind after college and just sticking to road racing in the winter, though cc through high school and college does indeed help to build strength that will pay off after college in long distances on the roads. On the other hand, it is also unfortunate that there is such a dearth of competitive cc opportunities for post-collegians, especially given the rise in popularity of trail racing. I imagine there are parallels in the popularity of the marathon and half-marathon compared to what has happened with the 5 mile, 15K, 10 mile, 20K, 25K, 15 mile, and 30K distances. Reminds me of a pertinent passage in Once A Runner, to boot.