What about energy, especially oil/gasoline? Back in 1980, gasoline was as high as $1.50 a gallon. At that time, the average home in the US cost something like $40k. Now gasoline costs about 2.5 times what it did in 1980, yet even with the housing crisis the average home price is still 5 times what it was in 1980.
Whether or not your believe that the world is going to "run out of oil" soon as the peak oil people suggest (and I personally do not), it still stands to reason that the cost to extract oil will increase as we extract the last of the "easy" oil.
The price of other things may inflate as well. Its possible for example that real estate may see another boom/bubble. But if things are tight, people can always live in a somewhat smaller house in the long term, whereas people are not going to give up their cars and other heavy uses for energy no matter what. So unless there is some major technological breakthrough which can produce energy cheaply (cold fusion?), I think energy is a pretty safe bet for the next 10-20 years.
bettles
