I think it can be useful for the following 3 areas:
It enables you to see, hear and (even) talk to things thousands miles away. Of course, you can do remote meeting with it. But that's boring. THINK BIGGER. It can be placed in museums, theatres and classrooms - enabling those disabled to experience all those places and interact with the crowd (or classmates in the classroom case). It allows you to experience things while you physically can't. Sort of like the super power I always wish for - teleporting!
It gives a human touch on monitoring system. You can use it to check up on your kids, puppies and elderly parents while not home. Though there are already other home monitoring systems in place, but the ability of giving a simple smile and "hi" to your loved ones beats the other system by 1000x. Heck, it is simply giving a human touch on everything it's doing! Isn't that what "traditional robots" are lack of?
It saves more human recourses. At the end of the day, that's what robots are for! I can think of so many it can do right on top of my head already. For example, museum guide, campus guide, library guide... any guide you can think of!
Of course there are still many areas RoboMing can improve on - for example being to climb stairs. But I was very excited about the idea more so because it may allow me to experience things right here right now.