Pack n play, etc

At what point did you stop using a pack n play? My 9.5 month old loved it for a while, but now is to the point where he's wanting to crawl and toddle around more and he know he's contained. I was going to get a spare to keep at my mom's, but Idk if it's worth it at this point.

Also what about "cages"? Lol not real cages, but the bigger enclosure type things. Like in Rugrats. 😂 Would that be useful at this point?