If you are into "gaming", you can find all kinds of fun options at onlineauction.com, like this
Playstation Pinball game from curiocache
Click here to see this!
Or classic Bananagrams from retrocollectibles!
How about a New York Times Electronic Crossword?? You can get this from yogibear66
Whack a Mole! (my husband tried all summer... and lost!)
A little different type of gaming... but definitely a favorite! Texas Hold 'Em Poker from vermonter53