That's weird, I almost always have someone in their 20s or younger make a comment when I'm wearing my Atari shirt or if they notice the Atari watchface on my Pebble. I'm actually quite surprised at the brand recognition that Atari, and more importantly, the fuji, still has.
Although this is all anecdotal. I found a survey from 2010 about Atari brand recognition:
Although I believe 34% is pretty impressive for a brand that hasn't released a console in over 20 years.