People are 10x more likely to give out bad reviews when they have a negative experience than they are to give out a good review when they have a positive experience. I usually take the bad reviews with a grain of salt if there are only a few of them. If there are a lot then I take a much closer look at the product/vendor.
It would be useful to have a field for vendor ratings on their accounts at this site like we all have the iTrader rating.
2011 Dodge Charger