I find the 50mm focal length quite boring. I'd rather shoot wider or longer. Canon please skip the 50mm IS and just make a 40mm F/1 IS cupcake (because f/1 wont fit into a pancake)
See, that statement makes no sense to me - how can a focal length be "boring"? That means you must not know how to use it properly if all you get are boring shots. You can use a 50 to get some very nice close portraits with shallow dof. You can do product shots, you can shoot landscapes, street, groups of people etc. the list of subject matter is endless really. Now if all you shoot is pics of you cat then I guess that's a different story ...
Both points of view are correct. You can use a 50mm to do all of those things, even do them well. But an angle of view
can become boring to a photographer, very much so. Why? Because our eyesight has a fixed angle of view that is very wide. Depending on my mood, sometimes I want to focus on things that occupy a very narrow part of that view, sometimes wide, sometimes in between...sometimes it's nice to zoom in and out of that field of view.
The whole reason 50mm is popular, is because that's the focal length that makes things appear through the viewfinder, the same size as they do to the naked eye (at least on 1 series finders, and the 7D's...as well as many if not most classic 35mm film camera bodies...depending on their viewfinder magnification).
50mm is also an angle of view that is still wide enough to allow a perspective on things (at least on a full frame body), while imposing little or no perspective distortion...or technically "rectilinear projection" distortion...at least with full frame or smaller camera sensors.
And on a full frame body, if the 50mm is f/2 (or faster especially), it allows you to get so close to a subject that the focal plane becomes paper thin, throwing most everything out of focus.
I become bored with 50mm much of the time. I preferred the angle of view the 40mm pancake allowed. I sold it anyway though, because I can't afford to just own every lens there is...and the 24-105 is really all I need in that range for now (besides my Voigtlander 58mm).