What passes for the holiday season began before dawn the day after Thanksgiving, when a worker at a Wal-Mart in Valley Stream, N.Y., was trampled to death by a mob of bargain hunters. Afterward, there were reports that some people, mesmerized by cheap consumer electronics and discounted toys, kept shopping even after announcements to clear the store.

These are dark days in the United States: the cataclysmic stock-market declines, the industries edging up on bankruptcy, the home foreclosures and the waves of layoffs. But the prospect of an end to plenty has uncovered what may ultimately be a more pernicious problem, an addiction to consumption so out of control that it qualifies as a sickness. The suffocation of a store employee by a stampede of shoppers was horrifying, but it wasn't entirely surprising.

Americans have been on an acquisition binge for decades. I suspect television advertising, which made me want a Chatty Cathy doll so much as a kid that when I saw her under the tree my head almost exploded. By contrast, my father will be happy to tell you about the excitement of getting an orange in his stocking during the Depression. The depression before this one.

A critical difference between then and now is credit. The orange had to be paid for. The rite of passage for a child when I was young was a solemn visit to the local bank, there to exchange birthday money for a savings passbook. Every once in a while, like magic, a bit of extra money would appear. Interest. Yippee.

The passbook was replaced by plastic, so that today Americans are overwhelmed by debt and the national savings rate is calculated, like an algebra equation, in negatives. By 2010 Americans will be a trillion dollars in the hole on credit-card debt alone.

But let's look, not at the numbers, but the atmospherics. Appliances, toys, clothes, gadgets. Junk. There's the sad truth. Wall Street executives may have made investments that lost their value, but, in a much smaller way, so did the rest of us. "I looked into my closet the other day and thought, why did I buy all this stuff?" one friend said recently. A person in the United States replaces a cell phone every 16 months, not because the cell phone is old, but because it is oldish. My mother used to complain that the Christmas toys were grubby and forgotten by Easter. (I didn't even really like dolls, especially dolls who introduced themselves to you over and over again when you pulled the ring in their necks.) Now much of the country is made up of people with the acquisition habits of a 7-year-old, desire untethered from need, or the ability to pay. The result is a booming business in those free-standing storage facilities, where junk goes to linger in a persistent vegetative state, somewhere between eBay and the dump.