Instead of a throwback to great buying binges of the past, the empty shelves are just another sign of challenging times for some retailers. The shortages come from stores nationwide that are terrified of ordering too much and are keeping their inventories thin to avoid the glut of merchandise of last holiday season.

Yet Yamil Castillo, owner of The Red Balloon toy store locally, is decidedly upbeat when talking about his three Wasatch Front locations.

"I've kept up my stock, even though there's a risk factor, because if I don't have it, I won't sell it," he said. "If I have to, I can always buy less next year."

What customers are looking for are promotions and deals, he added, though he noted that board games are popular as recession-weary families opt to stay home more often than in the past.

Shoppers nationally are spending a little more these days that earlier this year, but they aren't going on buying sprees. Many store operators, remembering how Americans snapped their wallets shut last holiday season, didn't order big piles of merchandise in the first place.

"I guess if you see it, you should get it," said Martha Frey, who was surprised when she couldn't find a specific style of boots in a popular size for her 17-year-old daughter recently at a Top Shop in Manhattan's SoHo district.

The result, with seven weeks to go before Christmas, is that some popular toys in a few parts of the country are already hard to find.

In fact, the holiday season's early hit -- the Zhu Zhu Pets hamster, an interactive mechanical rodent by Cepia Inc. that sells for $9.99 and is being compared to Furby a decade ago -- is almost impossible to nab.

Other toys that are already becoming hard to find include Mattel's Mindflex, which measures brain activity through a helmet, a Nerf dart thrower called Nerf N-Strike from Hasbro Inc. and Barbie Fashionista, who can twist her hips and strike other poses.

"Stores [generally] just underordered," said Jim Silver, an analyst at Timetoplaymag.com, who predicted shortages of the top 100 toys by early December. In a typical year, only the top 15 are in short supply that early.

In recent weeks toymakers have dispatched executives to China to make sure they get enough products to keep shelves full, Silver said. But production times can be long, and chances look slim that people who put off buying a coveted toy until Thanksgiving will be able to get one by Christmas.

The barren shelves in some areas are in stark contrast to last year, when stores ordered too much and had to slap big discounts on merchandise as soon as it hit the floor. Holiday sales posted their biggest decline in at least three decades, and the results cascaded into poor profits and even the closings of prominent stores such as Circuit City.

This year, inventory generally is 8 percent to 13 percent smaller for mid-price clothing, and 10 percent to 15 percent smaller for home furnishings, said Antony Karabus, CEO of Karabus Management, a retail advisory firm.