That's actually what we've been doing since 2017.
We decided to take a Disney break (though not specifically linked to the anniversary), so in 2017 we did an "everything but Disney" trip. Universal, Sea World, Busch Gardens. For that we bought Seasonal APs for Universal. At just over $300 they were a steal, and the blackout dates were all times we wouldn't want to go anyway.
We then discovered the joys of running off to Orlando for a few nights every 3 or 4 months when we could get cheap airfare and a good Passholder hotel rate. Great way to escape and recharge. (My bf refers to it as his "quarterly therapy session") We renewed when it came time, upgrading to a 3-park Seasonal which was barely more than our original APs cost us, thanks to the renewal discount.
It's now been three years since our last WDW trip, and we're going back to Disney this December. We're not buying APs though. We'll see after our trip what our desire level is to return again quickly.
-Rob