Do Cruise Planner prices go back up after a sale?
They do, and understanding the reset is the difference between buying a real deal and paying a between-sale anchor that only looks like one.

Yes, and that is the whole game
Royal Caribbean's Cruise Planner runs on an anchor-and-discount rhythm. An item sits at a higher anchor price, goes on sale for a stretch, then returns to the anchor when the promotion ends. The next sale may go deeper, shallower, or land at the same place.
Because the anchor itself can drift upward over time, a price that felt high three months ago can become the new normal, and a sale off that higher anchor can look like a discount while still costing more than an earlier low.
How to tell a real deal from a fake one
A percentage-off banner tells you the discount against today's anchor, not against what the item has actually cost over time. The honest reference point is the price history: where this item has traded over the last 90 days, and how today compares.
This is why a chart beats a banner. A drink package marked "30% off" at $89 a day is not a deal if it was $63 a day two weeks ago. The history makes that obvious instantly; the banner hides it.
What this means for timing
Because prices reset, waiting is not free. If you skip a genuine low hoping for a deeper one, the price can climb back to the anchor and stay there for weeks. Equally, buying the first price you see usually means paying the anchor.
The workable middle is to decide what a good price looks like for each item, using its history, and to act when the price reaches it rather than trying to time the absolute bottom.
Letting the tracker hold the line
Royal Radar keeps the 90-day history for every item on your sailing and marks the all-time low it has seen. When a new price clears your target or sets a fresh low, you get told. When it is just a between-sale anchor dressed up as a sale, you stay put.
That removes the two expensive mistakes: paying the anchor out of impatience, and missing a real low out of greed.