Bigger scales typically include an implicit amount of wiggle within the lower scales. People understand that when you say a car cost "25 thousand", that it's n

Bigger scales typically include an implicit amount of wiggle within the lower scales. People understand that when you say a car cost "25 thousand", that it's not exactly 25,000, but that it's closer to 25,000 than 24,000 or 26,000. Moving to a bigger scale, and then back down to a smaller scale maintains that implicit wiggle room.