Jacobb, you also have to think that if there are no bids on an item and you are going to wait till the last minute, that someone may give the seller a good offer and then 'BAM' they are gone. But if you make a starting bid the seller cant take them off early without contacting you first.
It happened to me with a set of bumpers, I was waiting till the next day to bid and when I went back they were gone.