Is going to the gym worth it?

Whenever I exercise, I usually like to do it at home in my living room. I always thought the idea of going to the gym was a waste of time. To me it seemed like a waste of time and money for something you you do at home for free.

But I’ve never actually went to a gym, so maybe there is some sort of perk that I’m missing. Is it the atmosphere, do you get better exercise tips. I’m curious to know.