I've been using eSnipe for over a decade and have saved a TON of $$$. While they can't guarantee that my bid will be the highest, they can level the playing field by making sure that my "best and final" bid is judged equally with those of competitors. Otherwise, competitors would just nickel and dime up their own bids, in and effort to smoke out my "best and final." The only alternative is setting my watch, placing my bid manually, and hoping I don't have a conflict when the auction is ending. My time is worth a lot more than that!