How do I sell my entire collection?

[kchupp]

I have a Pepsi collection that is over 500 pieces. I have been trying to sell it. I put it on Craigslist, Facebook, and Ebay with not hardly any interest. What or where is the best place to sell an entire collection. I saw one on here but it doesn't look like there was much interest here either.
Please let me know. I am moving and will not have room for this collection that even has a working slider machine if the cord is repaired.