Individual snipers routinely account for more kills than entire battalions operating in the same place at the same time, hit the target almost every time, and each bullet costs around €2.
Whatsmore, snipers inflict a psychological terror on an enemy force that restricts its ability to operate effectively – when elite snipers are operating, they are invisible close up, and can strike from enormous distance, so nowhere is safe.
Indeed, an elite sniper's skills cannot be assessed with a single measurement, so the “longest confirmed kill” record stands as the pseudo world championship for military combat riflemen, and as of now there's a new outright champion - using an Accuracy International L115A3, British Corporal Craig Harrison killed two Taliban with consecutive shots at a distance of 2.47 kilometres (8120 ft) in Helmand Province, Afghanistan last November (2009). He then fired a third shot and hit the Taliban's PKM machinegun in perhaps the most prodigious feat of marksmanship in military history.
If you're wondering why it took so long for Harrison's kill to be made public, (it was made last November and only became commonly known in the last few days), understand that the publicity such a feat brings may not necessarily be wanted, or healthy, particularly if you are still "in theater". Harrison, who also survived a bullet passing through his helmet, and two broken arms from an IED explosion, has now finished his tour of duty and the story can be told.