How your posh silverware makes food taste bad -- Interesting article but only considers taste as a reason to pick one metal over another. Does not discuss anti-bacterial properties of silver, you need to hit the comments for that discussion.

Of note, they mention "copper, chrome, zinc, tin, stainless steel, gold, and silver" in the article, but there is no mention of titanium which is much more affordable than silver or gold for eating utensils. You can buy Ti utensils at many online retailers. Ti should be similar to gold, no metallic taste because like gold it is non-reactive.