So if I go one, I might as well ride 2. But my tix for Mont Blanc are included with my stay, so depends on funds I guess. I think the latitude card is like a 48hr pre-purchase too.
In regards to daylight and "night-skiiing", I was look at Mt St. Saveaur and I noticed the full day ticket is good till like 4pm, and nights till like 6pm or something? Forgive my ignorance, but when's it dark by up there come December?