Light bulb collectors: An illuminating hobby

In an unassuming strip mall in Owings Mills, Maryland, sits one of the greatest collections of its kind in the world. Chad Shapiro's day job is running a home automation business, but his obsession is nurturing his collection. And what he collects is old light bulbs.

OK, antique light bulbs and associated equipment.

Correspondent David Pogue asked, "Does everybody immediately appreciate the seriousness and the scholarship and the history of it?"