My older brother was a bit of a master at sniping. He did buy a lot of testing equipment on eBay for his work. I’m not sure how much he tried to go low on those, but knowing him, he would probably be knee deep in the bidding.
He told that at one time he’d run 2 or 3 computers. As he would say, sometimes an unemotional max bid that looks like it will lose doesn’t leave enough time to re-enter a bid. So he would log into his eBay account on 3 computers. He would have his unemotional bid on one computer, an I-could-live-with-going-this-high bid on another computer, and an I’m not going to lose this on a third computer. Depending on the item, he would or would not place additional bids. He did have the disposable income, but he liked to play the game.
Of course if someone lists a low enough Buy It Now, he, like anyone else, would just buy it.
John
Ebay was set up to exploit that "I'm not going to lose this" feeling.