They were less than 20 miles from a hotel...
...I've watched the movies and read a lot about this story over the years but just recently learned that they were just 18 miles from a scenic hotel in the mountains! And that hotel was downhill from where they crash-landed...they could have hiked there in a day or two if they just knew it was there.
So the co-pilot, who was still barely alive after the crash, stated they reached a certain point that is West of the Andes, then they headed North (they were nowhere near this point, the pilot was confused, they actually barely entered the mountains from the East before they went North)…The passengers felt, based on this information, that Chile was just to the West of them. So, despite West being uphill, they headed West up the mountain (after waiting 2 months for the weather to clear and to make a sleeping bag). After 3 days of scaling this initial mountain, they turned around and looked back East...one of the men, Nando, was almost certain he can see a road in the distance. He feels they should turn around and go East. He gets out-voted...the other two men feel that's not a road in the distance, and they would be wasting 3 days of climbing if they turned around and were wrong, so they (2 of the 3 men) continue West (and another man heads back to the plane). Turns out, it was a road.
That had to be a difficult call. Three impossibly strenuous days of uphill climbing heading West. Turning around and seeing what could be a road. If you turn back and it's not a road...you have to turn around again and re-scale the same mountain you just climbed for another three strenuous days. Still, tough call. Nothing but mountains in your view to the West. A potential road to the East. But you're almost certain you need to head West. It's hard to say they "made the wrong call" seeing they got out...maybe something unforeseen would have befell them if they went East. But the decision turned a one-day downhill excursion to the road into a 10-day impossibly difficult and dangerous uphill climb. Ouch.
I wonder what I would have done in such a situation. Personally I think it would have been difficult heading East after doing a grueling 3-day climb West. I'm almost sure I would have tried to soldier on, like they did.