wal-mart had these things on clearance:
only $10 (i saw them for $30 when they first came out).
$10 for 13 games that i dont need a system for is pretty good i think. i already had 5 of the games though.
you can read a review about them here: http://www.ign.com/articles/2004/06/29/jakks-tv-games-atari-paddle, and you can visit the company's web site here: http://www.jakks.com/tv-games.html
for anyone not familiar with devices like these - they are sold to complete with the success of pirate video game systems. pirate video game systems are released (many from places like Hong Kong) that include certain video game hardware and/or emulation, along with several video game roms. some of the more popular devices sold contain several hundred NES roms.
the legit systems (like the one pictured above) have just a handful of games with them (all of them licensed, of course). they work by plugging them into your tv or vcr and powering them up.