Skiers see Valle Nevado at US$580/night and stay in Santiago at US$120 to 'save money.' They save US$460/night = US$3,220/week. Then they drive 3 hours daily (21 hours/week) through hairpin mountain roads, gain 2,500m altitude daily (headaches, fatigue), miss on-mountain après, and eat US$25 empanadas in Santiago traffic instead of skiing last chair. The math: US$3,220 saved ÷ 21 hours = US$153/hour. Your time is not worth US$153/hour to sit in Santiago traffic suffering altitude sickness. Worse: Valle Nevado half-board (breakfast + dinner) means you'd spend US$120/day on Santiago dining anyway. The 'savings' evaporate. The real cost: you flew 11+ hours to South America for skiing and you're spending 21 hours/week in a car. That's insane. The only scenario Santiago makes sense: you're skiing 2–3 days max and spending the rest exploring Santiago (wine tours, Valparaíso, city culture). Then Santiago base works—it's a city trip with ski days. But if you're skiing 5–7 days, stay on-mountain. Pay US$580/night at Tres Puntas, ski in/out, acclimatize to altitude, enjoy mountain après, eat included half-board dinners. You're there to ski the Andes, not to commute through them. Valle Nevado isn't cheap, but you've already paid US$1,200 for flights and US$600 for lift tickets. Saving US$400/night to waste 21 hours in traffic is false economy. Stay on-mountain.