This is really a subjective question, as part of it matters as to what is important to you.
With value rooms, you still have a decent shot of getting a savanna room, and there’s a small chance with standard you might get one of those “secret” distant Savanna views.
While we’ve debated “stretching our points” with Standard views, part of what we love about the AKV is watching the animals. In particular *from our room.* Could I book standard view and go to one of the viewing areas? Sure. But there’s nothing quite like sitting with my cup of tea on the balcony of my room in early morning watching the animals wander about; that’s part of WHY I stay at AKV, so the view absolutely is worth it to me.
We stretch our points in other ways, usually through split stays, and do the first 1-2 nights in studios (especially as we tend to arrive after 9pm), book a 1BR instead of 2BR if it’s just the 4 of us, travel in cheaper point periods, or just go for a day or two less.