The advantages I see to using standby mode instead of locking is that if you have it in your pocket or anything, only the end key will "wake it up" but only to tell you that you need to press mute to unlock it. All other buttons act as if they weren't even pressed. The bad thing about locking it only is that if it's in your pocket and buttons get pressed, it'll start entering those keys into the password field. That's the only main differences I see...
the thing i JUST discovered about standby is if you have like bbalerts or a program that changes the colors of the LED or you missed a e-mail or text it wont let the LED or alert go off....at least that happened with me
I use standby mode while at work to save the battery and keep keys from being pressed while it's in my purse. It still rings when I have a call though. I've never tried putting the ringer on quiet though. I think the standby mode is a better option, as long as it won't ring while you're in class.
CrackBerry is in no way Affiliated with BlackBerry. We take pride in our unbiased content, however do occasionally receive free products from vendors that we review or discuss. For more info click here.