Would this cost difference be due to the climate and sunshine hours? Friends have told me that in September we could expect temperatures between 5C and –2C and 10 hours of daylight. In March, we could expect temperatures between 5C and –10C and 6 hours of daylight? Is this accurate. Would there be sufficient snow in September to make the trip scenic and live up to expectations? Is first class that much better on the Glacier Express and on Swiss trains in general?
Thanks in advance for all your responses!