Yes - didn't there used to be a site called "hammersnipe", which auto bid on your behalf? May still exist.
If I really want a coin, I leave nothing to chance, and will be there to manually snipe a few seconds before the end. An outrageously high bid at that point will not only win it, but take your winning bid amount to just the next level above the second high bid, and because you can see in the seconds before your bid, what everybody else is bidding, makes it more unlikely that another outrageously high bid will also be made in those final few seconds, independent of yours. Possible, but unlikely.