I collect McFarlane SportsPick baseball, football and hockey figures. As for errors, there is a definite market for them. It is believed that in the long run, they don't hold value as well as other items, but that is in a different arena (the sports figures). I am not sure about Star Wars. Since there are so many Star Wars figures being produced, this actually may be the only or one of a few items that might be of value. Again, I am not sure. I have a friend who has thousands of dollars pass through him each month for Star Wars collectibles from the 70s. He told me to stay away from the new stuff unless you just enjoy it b/c the overproduction will mean that this stuff will be like 1980's baseball cards...worth very, very little... I really enjoy the sports stuff, so I decided to collect it anyway.
Good luck with your collection and I hope this one was worth the buy.
Dave