I'm required to have a BB for work. When I'm working or traveling for work I check it pretty frequently. Even if you turn off all the audible or vibrate alerts for emails, I haven't found a way to turn off the blinking red light when you get a new message, and it's pretty hard to ignore that.

On the other hand, I have absolutely no cell signal at my house or for miles around, so I can't check it there. Even though I work from home when I'm not out visiting customers, I have to say that's not such a bad thing.