Not necessarily that far-out: since the core CPI that goes into inflationary figures is measured using things like the cost of a loaf of bread, I always thought it'd be nice to be able to flip that around, and see historical economic charts measured in loaf-of-bread-units. It would also allow for easy cross-comparison between figures from different countries.

(To go actually far-out, though, wouldn't it be interesting to have a salary and a bank account denominated directly in inflation-compensated purchasing-power, such that if you got paid 1 BreadBuck, it would buy you exactly one loaf of bread today, tomorrow, or twenty years from now?)