In reply to CraigLaurie:
We rented an apartment in Ax via Homeaway.com. Not much more expensive than camping and wayyyy preferable. I can't find the one we rented on their website at the moment but here's an example of one nearby:
https://www.homeaway.co.uk/p1657308
There are many. And then there's airbnb to try. I'd imagine that ski apartments, if available off season, will be even cheaper.