Luxury cruises were designed to make something unbearable (a two week transatlantic crossing) seem bearable. There's no need to do it now, there are planes. You wouldn't take a vacation where you ride on a stage coach for two months but there's all-you-can-eat shrimp. You wouldn't take a vacation where you had an old-timey appendectomy without anesthesia while steel drums play. You might take a vacation while riding on a camel for two days IF they gave you those little animal towels wearing your sunglasses.