be worth its weight in gold

be worth its/your weight in gold

to be extremely useful or valuable A book that could tell me in simple language how to use this computer would be worth its weight in gold. Really good experienced singers are worth their weight in gold to the choir.
See also: gold, weight, worth
References in periodicals archive ?
When we look at U-2s, Global Hawks are beginning to come off the lines, they're coming through OT&E (operational test and evaluation), the Global Hawk is going to prove itself to be worth its weight in gold and we can walk away from some of the older systems and we can maintain much more persistence with these unmanned systems.