Luxury train tours are proving a big hit, as tourists with deep pockets seek out the ultimate travel experience.... Railbookers say they have seen a 68% spike in luxury-level bookings over the last two years alone, as demand grows. Some of the most famous luxury train journeys include the Orient Express and India's Maharajas Express.... This IS the trip of a lifetime." However, there are some who were less than impressed with their experience abroad the luxury train. One disgruntled Tripadviso