Thanks and I really think that everyone should read that article by Bob, as it clearly outlines the relationship between acquisition price and the price you must sell at to even make a slight profit.
In domains, you make money on the buy, not the sell, so everyone should set their purchase budget based on a realistic, expected resale price, not on "how much you like the domain".
Too many people get all caught up in TBR auctions and end up overpaying, sometimes vastly so, which is a quick trip to a cardboard box.