I've checked Decentraland a while back and it's mostly all flat surface with plots of land to purchase. Crypto side looks interesting but there's no fixed user base inside this Decentraland 'world' base as of yet. There has to be something to do inside this world, someone to talk to and so on. For now it's a ghost town. Maybe mining for more crypto inside Decentraland would get things moving? :p

There's a lot of successful social VR worlds with ton of users like Vrchat, Rec Room, Bigscreen etc but they are not experimenting with crypto - at least not yet :)