Is this new goblin builder worth the gems?

The "Job Hunt!" event introduced the Goblin Laborers, a pair of goblins in the Home Village.

Goblin Builder works when all builder slots are full; Goblin Researcher activates during Laboratory upgrades.

What tasks did they help players with? 


Goblin Builder was exclusive to players with Town Hall level 7+. It required all 5 Builder's Huts to be built.

Goblin builder cost 40 gems per day.

A book of heroes costs 500 gems, equivalent to 12.5 days of goblin builder work.

Books have the advantage tho that you instantly have the upgrade.

Is goblin builder worth it

If you can wait for the upgrade time, opting for goblin builder or researcher is highly recommended.