fanboy2000
Adventurer
First, electrum is a an inherently funny word. Some words sound funnier than others. (E.g., pumpernickel)I have to ask. What's funny about Electrum coins? Their obscurity in modern times?
Also, in 3 and 3.5, games that a completely decimal coin system, electrum are odd because their half a gold (or whatever value you wish to assign them) and it ruins the idea of easily converting your coins into a simple decimal number. (I.e., I have 235.36 gp) You an still do it, but you have to expend a very small amount of brain power to do so. Players are inherently lazy and sometime they just want their phat loot.