Some basic models may be easier to cart around because they don't have any extra parts. You can also look for bags that leave the play yard's wheels free, so the whole thing can be rolled once it's packed up. If you plan on taking frequent trips (especially by air), you might want to consider a heavy-duty bag that you can buy separately, such as the Rover Gear Easton Travel Yard Bag (about $34).
Fisher-Price Ocean Wonders Aquarium Playard - This is the benchmark for comparison. When I had my first child, he was only in our house so this served as his napper and playard in the family room when we didn't want to trek to the bedroom. My first loved it. Napped easily in the bassinet, changed his diapers in the bassinet, easy to clean, set up, take apart, and the mobile was awesome - ran on batteries and had good songs. This was THE ultimate playard. In fact, we brought this back out ... full review
This is a great little Baby cage 😉 I mean playpen lol it work perfect to put my almost 2 year old in while I do the things I need so I know she's not getting into crap she knows she shouldn't be touching or climbing on the table and suprisingly she loves it I set it up a bit different to make it bigger but it's like her own little spot with all her toys I am so happy with this purchase the slip on pieces to keep each section straight are great to I wouldn't want one without them it would be a total mess! Excellent quality and affordable price! And much better than those cheap round plastic ones that kids can just push over!