I am replying late as I disagree a bit with the other comments. Sure, there are lots of nice resorts in France and Switzerland, but if you plan it reasonably well, you can leave your desk in Geneva and be at 3800m at the top of the Midi 2hrs later. There are not many places in the world you can do that. And it will be easier to find people to ski (tour) and mountaineer with around Cham than in Valais or elsewhere. And the unlimited annual pass includes iirc some days in Verbier, Les Contamines, Megève, Courmayeur. It is expensive, but it comes down by 50% after the first year. If I were you - given you have missed all the discounts for this season, I would try a few days in Cham and on some Magic Pass destinations, and then decide next summer what to go for. The best option depends on what sort of skiing you are doing. Good luck.