An investment is supposed to grow in real terms -- i.e.: purchasing power -- not just in nominal terms. If the Dow hits 20,000, but my dollar buys only 25% of what it did when the Dow was 10,000, then I'm much poorer in terms of my investment, regardless of the "new high" in the nominal Dow.
Any investment that loses purchasing power is, well, a loser.
•Dow 10K 1999 bought 5,400 bushels of corn
•Dow 10K 2009 buys about 2,750 bushels of corn
•Dow 10K 1999 bought 4,000 bushels of wheat
•Dow 10K 2009 buys about 1,900 bushels of wheat
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Dow 10K 1999 bought 36 to 40 ounces of gold
•Dow 10K 2009 buys about 9.4 ounces of gold•One ounce of gold in 1999 bought 1/36th of a share in the Dow
•One ounce of gold in 2009 buys 1/9 of a share in the Dow
•One ounce of gold in 1999 bought 230 gallons of gasoline
•One ounce of gold in 2009 buys 420 gallons of gasoline
•One ounce of gold in 1999 bought 150 bushels of corn
•One ounce of gold in 2009 buys 290 bushels of corn
•One ounce of gold in 1999 bought 110 bushels of wheat
•One ounce of gold in 2009 buys 210 bushels of wheat
Full article:
http://www.dailyfinance.com/story/investing/dow-10-000-it-aint-what-it-used-to-be/19290920/