Let the hive mind of Engadget get that for you.
"I just switched to Sprint from Verizon about three months ago for the Pre. Then I went for the Hero about a week ago. Now, I miss my hardware keyboard and am thinking about switching to the Moment. I am still able to switch back to Verizon if I want and get the Droid when it arrives. Should I just trade up to the Moment when it comes out, see if I like it, and if not switch to the Droid? Or something else entirely? Help!"
Although the original argument was made in the case for the death penalty, it applies to the jury system and trial judgements in general: In order to accept that all judgements should be carried out, you have to be willing to accept the possibility that you may be found guilty of a crime you did not commit.
Which is to say, its all well and good to admire the justice system from a far and inherently believe in the judgements passed down as truth, but don't be so naieve as to believe the courts are never wrong and that one day, you may land on the wrong side of an injustice.