Life's Little Riddles: Is Playing Rock Band Fun?

I have never played the popular video game Rock Band, but I'm well aware that it's a big hit among almost every bracket of the population.  Well, lots of people on Facebook and stuff post pictures of themselves playing said game, and in most of the pictures, the people do not look like they're having fun.  The shots make the game look sedentary and geriatric rather than cutting edge and thrilling.  Point being, pictures of people play Rock Band do not make me want to join in.  Let's take a look:

  I do like that the singer in this group made the effort to stand upright.

  At least this band's singer looks rather passionate.

  This one appears to have been a secret candid.

  Just loafing around!

I don't know.  It MUST be funner than it looks!  I mean, it has to be.  I guess I will have to try it out, and take some photos of myself looking like a zombie vegetable holding two wooden pegs (sticks would have been the more appropriate word, but I enjoy saying pegs).  Now if you'll excuse me, I have a bundle of lollies and fizzy drinks with my name on it!  Ta-ta!