We have always used Norwegian because we like the laid back atmosphere. Now we have lots of perks because we have used them alot so we don't try other lines. NCL is always having a sale. I never book more than about 10 months out and then I watch because if they have a further sale I can rebook for the cheaper price. Our Dec.2023 cruise to SE Asia went down by $500/person last month so now we have more money for excursions.