We did the opposite, and went smaller. We had a Coleman Westlake (12ft box) PUP, which was great for the kids and their friends. But it was too big and heavy to get into the small, secluded sites at the back of campgrounds. It had a lot of stuff we never used - hot water heater, shower/cassette potty, outside shower. We sold it when we moved to Colorado from California.
With the kids off to college, only weekends available to camp, and a minivan to tow with, an A-frame looked like a great choice. And it has been. We got the small model - 12ft box, but no ends or slide-outs to extend - to fit in the garage so it could be ready to go with an hour's notice (pack food and clothes).
It's perfect for our present camping style - 1-4 nights for the 2 of us (sometimes one of the kids will join us). Setup of the entire site from arrival is less than 1 hour, and I can do it all myself except for the EZ-up over the picnic table. We use campground toilets and showers. We cook, clean, lounge near the picnic table unless it's raining or snowing.
2014 Rockwood A122 A-frame
2008 Hyundai Entourage minivan
camping Colorado and adjacent states one weekend at a time