I recently wrote about how we did mostly everything at Epcot in one day with the help of Genie+. In that piece, I revised my opinion about Genie, saying that it was a big help at Epcot, even if not strictly necessary. If you have a limited budget, Epcot would be one of the parks I would skip purchasing Genie+ for, though it would make for a longer and more stressful day.
Today I'm going to talk about Animal Kingdom a bit. As the title of this post should make clear, I did NOT revise my opinion about this park as it relates to Genie - I still don't see any way in which it's worth it, at least until Tropical Americas opens (in other words, we're talking about years, not months). The only way in which Genie makes sense at Animal Kingdom is if you start at a different park and plan to hop here later, and you've already purchased the Genie+ multi-park option. In that case, I can see an argument for stacking a few rides so that you can get more done in a shorter amount of time. If you're really itching to spend money at Animal Kingdom, there is a better use of your funds (which will be discussed below).