The games themselves are good sellers, and the pieces and boards can be sold on their own either as replacement parts or as craft or decorative items. So if the game is cheap enough, but doesn't have all the parts, go ahead and buy it and start stockpiling the pieces to sell in a lot when you accumulate enough pieces. (Crafters buy the game tokens to make jewelry, clocks, and other cool items.) The game tokens sell on their own, but prices range from $2 - $5, so it may not be worth your time to list them individually, unless it is a rare or discontinued piece.
When it comes to board games, think special edition, collector's edition, or anniversary edition. The fewer there is of something, the more it will be worth in the eBay marketplace.
Here are a few examples of some completed listings of different Monopoly games to give you an idea of what to look for when you are out shopping at thrift stores, garage sales, or church rummage sales:
Garfield 25th Anniversary Monopoly game sold for $34.99 on April 29.
Pokemon Collector's Edition Monopoly sold for $34.95 on April 23.
Simpson's Monopoly game sold for $28.99 on March 14.
47 Monopoly game tokens sold for $41.00 on February 6.
Lord of the Rings Monopoly game board only sold for $12.99 on April 24.
So don't walk away from a special or collector's edition Monopoly game just because it isn't in pristine condition with all the parts. You can dissect it and sell the components if necessary. Make sure you are shipping these internationally! Collectible are wanted all around the world. (Not sure how to ship internationally? Check out my eBay International Shipping Tutorial.)
On a side note, I am always interested in hearing from guest bloggers. If you would like to contribute a guest post, just drop me an email at ebaycoach @ yahoo and share your idea. If published, your post will include a back link to your site or eBay store.
What to Buy at Thrift Stores to Sell on eBay (Kindle Book)