In honor of April 20, here's the YouTube video of Evan Gotti, who bids 420 on everything:
The best part is how he throws all the other bidders off. At the end, someone pulls the classic Price is Right screwjob, bids $421 ... and wins. Bob Barker's reaction is priceless.
If you're looking for the story of how "420" became association with marijuana, you can read about it here:
One lazy afternoon in 1971, five students at San Rafael High School in San Rafael, Calif., met up exactly an hour and 10 minutes after school got out. The Waldos, as they called themselves, congregated outside their school's Louis Pasteur statue and went on a mission. Earlier that day, they had obtained a treasure map from a friend leading to a secret spot near the Point Reyes Peninsula. School got out at 3:10 p.m., so they used the code word "420 Louis" to indicate the time and place where their adventure would begin. The secret treasure was a pot patch that one of their brothers had grown.