"Merry christmas"

Regarding wow:

/cough: back in the good old days i had to first install vanilla, then the burning crusade etc... but all i want now is to go right ahead and get a instant lvl 100 toon.

The battlechest and WoD is on holiday sale... but far as i understand it, this would be a waste of money, as i could skip those entirely and buy a single "legion" for "50 buxx" instead (which contains battlechest, wod and legion)?