Don't be surprised in 20-30 years if the President of the United States is wearing a 'Space Invaders' tie at his or her inauguration. Gamers are getting older and moving out of their mom's basement and into the professional world. These professional gamers will need ties, geeky gamer ties.
The 'Space Invaders' tie is perfect for the child that grew up gaming and doesn't want to forget where he came from just because he works in an office. I'm all for sharply-dressed gamers. Zelda and Mario shirts get old after awhile, after all.