Robert Higgs makes an important point that "Consumption Spending HAS Already Recovered," and it's private investment spending that is lagging and holding the economy back:

Commentators and pundits, some of whom ought to know better, continue to harp on the idea that the recession persists because consumers are not spending. Every Keynesian seems to believe that because consumers are in a dreadful funk, only government stimulus spending can rescue the moribund economy, given (to them, at least) that investors will not spend more because the Fed, having already driven interest rates to extraordinarily low levels, cannot use conventional policies to drive them any lower and thereby elicit more investment spending.

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