I'm skeptical... what problem does telepresense solve that IM/slack/email doesn't? Generally speaking if I'm working remotely it's either because I want to be l

I'm skeptical... what problem does telepresense solve that IM/slack/email doesn't? Generally speaking if I'm working remotely it's either because I want to be left alone (IE: I don't want to be in a room with people, virtually or otherwise), or for some reason I need to be disconnected in time and space. The only thing I can think of telepresense saving is maybe commute time. That's not nothing, but I'm probably not spending thousands on it either.