Do You Waste Time Preheating The Oven?

McCoy and I are only at peace with each other when we are debating something.  Doesn't matter what the topic is, we will find a way to disagree with each other.  But it is when we are like this, that we are only truly happy.  So, here is the newest topic of discussion.  What do you think?

Do you preheat your oven?  McCoy seems to think it's an epic catastrophe if you don't.  I, on the other hand, don't think it's that important.  Just add a few more minutes to the baking time.  Who has the time to just stand around waiting for the oven to heat up.  I've never noticed a difference in my food.  McCoy...well, he's just McCoy