My daughter switched from a gym that didn’t to a gym that does (Although not for this reason).
She prefers year ‘round upgrades. It just makes sense to keep working progressions than to put it all on the shelf for several months and then try to pick it up again. And once you are in the optional levels, you use most upgrades as soon as they are ready anyway, so there is nothing to be gained from putting them off until later.
Also, the gym shuts down for at least three weeks over Christmas, which is the middle of our upgrade season (Competition season is June -September) and they lose the first week back doing strength and conditioning and feeling horribly sore, so it’s a bad time to have the pressure on for new skills / deciding levels etc.