I would think about an aluminum-frame since there are many nice alu hybrids & the light weight is a nice advantage. Anyway at €1.500 price the quality & durability will generally be very good, bike & components should last a very long time except for normal things like replacing chain & bearings. In Washington DC the best local ski spot is very close to a popular cycling trail & in Utah the ski roads have bike lanes so with enough time and/or fitness, why not cycle to ski spots? No problems with car parking, maybe even camp to save cost of expensive hotels. For bike/ski trips I guess a trailer would be the easiest option.