Something to consider is what is your purpose and how much time will you spend inside. I find it a challenge to see how little we can bring and still have all we need. We travel to be outdoors. We spend as much time as possible including cooking, eating and relaxing outside. Some people don't have the luxury of good weather that we have experienced in California, however.
We like our 2720SD. I wouldn't want it longer because of the sharp turns of mountain roads, dips in the campground driveways, and small campsites we use. A longer trailer means fewer useable sites will be available. Though the 3023 may be only 50 pounds more, how much more weight in personal belongings do you need to take? That's more to haul, harder on the tow vehicle and less gas mileage up the grades.
But if you travel in the plains on flat roads and use RV parks with large sites then maybe the longer unit is for you.
Hope this helps.
Bob W.