I'm not as excited... this contest is more about pushing CoinOpSpace's Google rankings than anything else:
"This is not about putting links in a thread to other websites, you need to generate original content exclusively at Coinopspace.com."
Currently BYOAC gets #3 spot in Googling for "Arcade Restoration", while COS is on page 3.
That's one reason to exclude the popular games. Those keywords are already saturated with too many sites when Googling.
One example of unpopular game search ranking: Google for "Juno First restoration" and the top 3 spots are my own BYOAC threads and my own web page. ;-)