I have a hard time believing that they can actually track how many times players visit secret locations. If they can, it would be very disturbing: does that mean they can track which objects get the most use and which actions Sims perform the most? Even if they could, I would argue that such data would give a very skewed perspective on what players actually want or how they play.
They need to include secret lots in the game again. They have always been a part of the Sims franchise and they add a lot. Think how much happier simmers would have been had there been an unlockable dive lot or a secret mermaid grotto in Island Living. Apparently in Windenburg, the Bluffs and the Ruins were supposed to be secret or unlockable—I would have preferred it if they were. As for the unfinished secret spot in Midnight Hollow (or anywhere else in the game, if there are more), they ought still to use them in a future pack. Make them secret entrances to the Realm of magic world. It would make sense for vampires and mermaids to have their own special entrances to that world. Or they could be rendered unlockable.
Anyway secret lots in my view are great. Who cares if very few use them? They should just be there, in every pack, to show some love to the completionists and dedicated players who support the game. I love the Sixam lot in particular; in my game (with the help of the freebuild cheat) it has extra collectibles and a secret underground bunker, and I can often find a few aliens hanging out there. Only my mad scientist and my chief astronaut go there, but I am glad they can.
