Aggregate price inflation has been low over the past several years. A big part of that is that energy prices are much lower than they were three years ago (remember $4+ gas?). That is only a very temporary phenomenon (long term supply is constrained, demand is exploding as Asia develops), and in any case energy is only one part of the economy.
But asset inflation is a real problem. That is why the price of gold has tripled in the last half dozen years. If you put money into either stocks or cash 5, 10, 15 years ago, you're way behind where you would be having put the money into a store of wealth that is portable and not subject to inflation.