Like everything else, it depends. Unless you are one of those who enjoys being at sea more than getting to your destination it is nice to get there. We met a guy in Fiji who cruised on a Pearson 36 and only used his working jib (not jib and main, just the jib). He figured on 50 miles day and was happy since he said he had lots of food, water, and books. Of course he eventually lost his boat. The longer a passage takes the more risk there is from weather and the more wear and tear on boat and crew. The general wisdom is that when you go from Tonga to New Zealand you are going to get one pasting. If your boat is really fast, perhaps you can get a weather window and avoid this. If your boat is really slow you may get two (three?).Thanks everyone. I know there are a hundred factors that make a great cruiser, with speed just one of the many variables, and compromises. And I souse that if your longest passage 3 weeks, a couple days one way or another won't matter.