I hate feeling rushed in the morning. If i have to leave the house at 8sharp, i'd rather wake up at 6:45 so i can lay in bed a bit, grab a drink or cereal or something, watch a little sportscenter, check some online stuff and get dressed at my leisure.
I've definitely had times where i just wake up at 7:45, brush my teeth, make sure my hair doesn't look terrible, put on a go to outfit and walk out the door at 8 with a granola bar in hand but i'd rather not.