[Snowflakian]

I personally have always loved them when done well. GI Joe, transformers, and superheroes specificly.

Sure it's great when you're a kid to make pillow forts and caves for bases, but when I got the tmnt sewer playset as a kid, that immediately became my go to all for spiderman and more. Even a hand crafted dollhouse we had in the family became the X-Mansion.
Castle Grayskull also fit into so much, as did even Fortress Maximus. So big playsets are always win. My only gripe as a kid to now is that they need to be more line specific and less cheesey like some were back in the day. But short of that, I don't see why they couldn't be a hit still when done right. Especially in the rise of Joe figures and MU figures.

The drawback is having to balance that cross play factor, while still keeping it line specific. But a good playset always enhances play value and the imagination let alone displays. Some of my fondest toy memories as a kid are having spidey swing from a telephone pole, or even heroes fighting in the marvel superheroes training center.