I went through a Second Life land trading phase quite a few years back. Properties like this were very valuable to advertisers. Because of advertisers, it was possible to be a niche real estate mogul for weird useless little virtual properties like this that could earn you an actual meaningful real-world income. Second Life had (may still have, I've not been back in a while) its own advertising industry and multiple adtech networks. A despicable inevitability of having completely free content creation tools and also an economy that can trade with real money. People trying to sell their creations want people to pay in game currency to get their things, so they can extract the value to real money. They want people to know about their products, so they turn to people who will accept in game currency to blast awareness of their products everywhere. Those advertisers want land, which they need to buy. Probably from another player.
So, the first thing I thought of when I saw this plot was "BILLBOARDS!!!" and I hate it.
My local store uses these but they lock up if you bring them out to the 2nd row of parking spaces out front. It's enough to get the cart to your car, then you go to return it and it's totally locked, so everyone just shoves them into the planters in a big pile of tipped over carts instead of physically lifting the whole thing and hefting it to the cart returns to return it. The store has signs everywhere now telling people not to throw carts into the planters, and the employees know the problem, and the city has evidently complained multiple times, but district management evidently refuses to believe it's got anything to do with the cart locks and I was told by an exasperated checker that they're apparently considering getting security guards to confront people and make them return carts?? lmaooo