On Friday morning, Sajjad Dilnawaz and his partner Marsha Vallecillo decided to skip their usual pre-weekend activities to wait in line with thousands of Bay Area residents and witness a spectacle 15 years in the making: the debut of the new Costco store in Vallejo.

They arrived at 6:30 a.m. at the new warehouse on Admiral Callaghan Lane, directly across from Highway 80, hoping to snag a two-day Disneyland Park Hopper deal — with Lightning Lane pass and food credit — one of several limited offers for the grand opening. But they were also there to capture a feeling.

“It’s nostalgia, I guess,” Dilnawaz of Vallejo told SFGATE. “I used to do this with my brothers for Black Friday when I was younger. It’s more for the rush. Just getting up, meeting people and being able to be a part of it.”

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Sajjad Dilnawaz, left, and Marsha Vallecillo of Vallejo line up during the grand opening of a Costco in Vallejo, Calif., on Nov.…