In reply to JackM92:
Not sure about the summer prices but I expect that it is a bit more. If I remember correctly, some of my chums have bought day touring tickets, which are cheaper than a full day pass. This entities you to uplift to the top (of say the GM, Le Tour, or Flegere) and to truck off for the day touring. This does not however include a return down the hill if for some unfathomable reason you are not on skis.
One other approach to save (?) money on a number of day passes is a Rapidcard. For the modest sum of 25€ you can buy a card which enables you to go straight on any lift without having to que for a ticket! The actual saving is that something like every 6th day is free, and that you always benefit from the cheapest rate for the lifts you use, for the periods you use them, on the days you use them.
This year for some mysterious reason, annual and seasonal passes are about 130€ cheaper than before. For me renewing my pass it is 820€ for the annual. For a first timer, this rises to something like 860€. Still not bad for unrestricted access for a year.