If you actually need/really want a new bike, I would definitely see if you could do both. YT/Canyon website for the win and look for flight and air bnb deals; I think money can always be saved.
Now assuming you want to go riding on holiday, you have picked two amazing places to go to (from all the inter web research I have done). I think the memories of that once in a life time trip will be worth it, long term you won’t care or remember how much it all cost. There is plenty of other non biking stuff to do as well.
I am booked to go away with Mrs Gribble next weekend and am very over excited. She had a trip (dirty weekend away riding in Verbier) combined with a basic Camber as a birthday present – although she is very pleased with the bike, having trip to look forward to has made it exponentially more exciting, (for us both I might add). I remember riding in some cool places on my basic old hardtail and have very good memories of those trips. The bike was of secondary importance to the place we were riding, but of course if you can it would be nice to have the best of both!