> Adjusted for inflation, earning power is less. Taking my date to a $3 movie in 1992 was a relatively smaller investment than taking my kid to see a movie for $15 today.
1992 was, actually, a notably cheap year for a movies (ticket prices
dropped, even before accounting for inflation, from 1990 through 1993), but even so, $3 ($5.23 in current dollars) was well below the average ticket price ($4.13; $7.21 in current dollars ) in 1992, $15 is nearly double the average ticket price (~$8.89) today.
And inflation-adjusted earning power (whether you look at median wage or median income measures), while some measures have been relatively static over the last several decades, and generally have underperformed aggregate output growth, were actually lower in 1992 than today.
See, for ticket prices,
http://www.boxofficemojo.com/about/adjuster.htm