Comic book price history

OK, so I was on a government inflation calculator Web site recently and decided to see how comic book costs have changed over time.
What I found:
--When comics were 12 cents in 1968, that equals 74 cents today. So, that 12 cent price was truly a bargain.
--Today's average $2.99 DC Comic book was the equivalent of 48 cents in 1968 and so the reality is that comic books today cost 4 times what they did 41 years ago.

--The oversized Superman vs. Muhammad Ali comic I bought in 1978 sold for $2.50. That's the equivalent of $8.28 today.

--Here's a history of average comic book prices, courtesy of Wikipedia

1938-1962: .10 cents
1962–1969: .12
1969–1971: .15
1971–1974: .20
1974–1976: .25
1976–1977: .30
1977–1979: .35
1979–1980: .40
1980–1981: .50
1982–1985: .60
1985–1986: .65
1986–1988: .75
1988–1991: 1.00
1992–1995: 1.25
1995–1996: 1.50
1996–1997: 1.95
1997–2000: 1.99
2000–2005: 2.25
2005–2006: 2.50
2006–2009: 2.99