If you're not staying directly in alpe d'huez for TML winter, do you need a transportation pass?

We booked lodging at oz-en-oisans through the festival and now transportation passes are on sale and they're insanely expensive. Do we need them? I thought we could just take the lifts to/from the festival included in our ticket package already? 176 euros just to use the lifts afterhours is insane