I've been on a few cruises to the Bahamas in the past. We've gone and walked around Atlantis, and we've taken the tour there as well. When I was researching this tour, in addition to Atlantis itself, a few other hotels in the area offer passes to the Atlantis water parks as a perk for staying there.
Enter an enterprising marketer at one of the partner hotels. They now offer a package for cruise ship passengers that gives them a hotel room (for napping, resting, or changing clothes) and four water park passes. This is cheaper than buying the passes directly from Atlantis. Obviously, nobody is sleeping in this room, and there is no obligation to go and take a nap there in order to claim your passes (although it would be funny if they made you rest in bed for 20 minutes before you got to swim). This whole deal is just for the "perk" of water park passes.
We often rent timeshares, and these are typically week-long rentals. From time to time, we can only stay for five or six nights, even though we've paid for seven. We've never felt like we were breaking any type of rule by not staying in a room we've paid for.
And I do love the "perk seeker" term. Isn't everyone a perk seeker? Do people go out of their way to avoid perks? "No free breakfast for me, thank you. I am not interested in perks."
Cheating the system is one thing, but taking advantage of a benefit for which you are eligible seems like a perfectly reasonable thing to do.