You're also paying for the reliability and toughness expected of an industrial meter, and is a reason such meters cost more.
For toughness, the 1272a is equal to the 28II in terms of IP rating while the 87V is a DMM proven tough except when there is a risk of submersion in water or penetration from fine sand, like in the desert. All 3 have have similar shock and vibration ratings for surviving drops and bumpy rides.
Reliability requires a history of knowing it survives harsh locations its taken too, and reads true afterwards. Accelerated testing can help, but real field exposure is a better test. The 87V is part of a series designed ~1989, and many meters so made are still like new today, and in calibration: it was built to last and take a level of abuse. The 1272a has to live up to this legacy, as its its main competition.