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Guest
Web Monkey:Buying something on eBay is no more reliable than buying something at a flea market. The individual sellers can be selling you absolutely anything or nothing.
Terry
That is a bit of a stretch. If you don't exercise some reasonable cautions, you can have problems with ebay. But the same is true with some LDSs. Ebay and Paypal do offer some protections like seller/buyer historys and limited complaint arbitration. But you do need to know what you are doing. I have purchased at least a half dozen regulators on ebay with nothing but great bargains and pleasant surprises.
If you want to be sure of a great price and a good buying experience and you are not very familiar with your LDS, go with Scubatoys or Dive Sports. They have great reputations and they bend over backwards to protect them.