Do you guys think playing gmod a waste of time ?

There are people who think that playing games for a longer period is a waste of time, even if they enjoyed them. I know someone who doesn't join our group if the game takes like one hour for one playthrough (for example Humans Fall Flat where most levels are pretty big). But playing rocket league (where one round takes like 5 minutes) for one hour straight is no problem. That's a mind I don't really understand. I think he values gaming as a hobby with lesser value than others and playing too much would be a waste of time.
In my opinion, gaming is an hobby like every other. I do agree that breaks in between are a good thing though. This helps me enjoy gaming even more.

I don't think that all of this is somehow related to you. I just thought that would fit into this thread and could be a good discussion. In the end, if people have fun with what they are doing, I don't think it's a waste of time.