...and you don't want to set a "minimum price" since research shows that they aren't bid on as much?
Can you refuse to sell the item or are you obligated to ship it, no matter what it sold for?

You have several choices to sell your item.
1) buy-it-now, at the price set at listing
2) minimum set price with set selling price, meaning it won't sell til it reaches your minimum price(most often item does not reach minimum price)
3) starting price(which is actually the most common)