(CNN) -- Erika Preuss gave a worried glance over rows and rows of empty cars packing the Wal-Mart parking lot at 3:30 a.m. Sean Blake said he met Black Friday campers in Houston, Texas, who call themselves the "Best Buy family." She was 30 minutes early at the sprawling store in suburban Kansas City, Missouri, where she had arrived to take advantage of Friday's 4 a.m. post-Thanksgiving clothing deals. But there were no tents, no campers, no eager shoppers waiting to spend their dollars. Preuss said she expected to wait in a line to get service, but people were already inside, and the store was filled with frenzied shoppers. She captured video to document her experience.
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iReport.com: Shoppers line up early to take advantage of holiday deals
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Sean Blake says people camped through Thanksgiving outside Best Buy
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Erika Preuss calls herself a "Black Friday virgin," learns many lessons
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Barbara Rademacher says cold weather doesn't deter shoppers in Arkansas
@placeholder saw people with TV sets, car batteries, computers and other devices.