It's just weird thinking that we'll all be buying hotdogs at 0.00000001 bitcoins in a few years. I guess people will have to be comfortable with exponents real soon.
^ this.
As for the people who believe that the value of a single Bitcoin goes up. Yes it does, but so many people who started using Bitcoin to check what it is all about, will jump off the bandwagon because it's too geeky, too expensive to maintain and absolutely uncomfortable as payment method. In the end, maybe five people will be left using Bitcoins and everybody else returned to usable currencies, laughing at those loony Bitcoin users. So who cares about the Bitcoin/gold value.