I like the new ships just fine, and, in fact, our favorite cabin is only on the new ships. But we chose the Diamond for a cruise this November. We've done the Mexican Riviera many times, and the last few we didn't even get off the ship. I've always wanted to do a Sea of Cortez sailing, and the 7 day on the Diamond fit the bill for that. There are some advantages to the older, smaller ships. The main one of those for me is the full wrap-around Promenade deck. I love walking laps on that. The best walking option on the new ships is the track up top. Not a bad option, but it is completely exposed to whatever weather is happening.