Sounds daft but we should measure the value of bitcoins in Big Macs or something like it. It would give a far clearer picture long term.
Are you talking about the affects of inflation/deflation? Or just joking around? lol
On a serious note, somebody already did that with the dollar and compared the prices that you got for things like coke, I'd need to dig around to find a proper chart and stuff though.
I think he was being sarcastic because dollars are the best way we can measure/understand the value