the reason you have a reserve yet start at a low price is a sales technique called "lowballing". the principle behind this is that people bid on an item below its reserve and form an emotional connection to the idea of buying that item - they imagine buying it, having it, holding it - wahtever - and then as teh bidding heats up, theyre more inclined to keep bidding becasue of the attachment theyve formed, than if they started bidding above reserve
if yorue interested in this sort of stuff, id reccommend a book called Influence by a Dr Robert Chialdini - it talks about a lot of the sales techniques/compliance techniques used by sales professionals around the world so as to separate you from your $$
ciao