
Having a large chord repertoire is very, vey useful as a guitar player. It allow you to tackle pretty much any progression and also set different moods in the songs that you’re playing by carefully choosing specific chord voicings.
Unfortunately, along the road to having a large chord vocabulary, you’re going to encounter some chords that simply are just a pain to learn. But once you've nailed them, you'll move up a level in the great guitar stairway of knowledge.