I like my RCBS reloading equipment and my Hornaday GS1500 scale took a poop on me. I looked up RCBS and their most expensive scale the Rangemaster sells for $169.99 but I found it new on Ebay for $114.99. Is the one on Ebay a second or rehabed unit and if not why can they sell the same product for $55.00 less than the RCBS Retailer? I am confused about the prices on Retailers and the prices on Discount sites like Ebay and Amazon, can someone explain how the prices can be so different? Thanks