Unit LIFO vs dollar-value LIFO?

There is pretty much only 1 advantage of LIFO: tax deferral.

They both contain no silver and are not rare. They are both only worth a dollar unless they have the mintmark "S".

See link.

What cost $1 in 1872 would cost $17.77 in 2008. Also, if you were to buy exactly the same products in 2008 and 1872, they would cost you $1 and $0.06 respectively.