Keep in mind two things - how many people are buying WD and how many are buying Samsung (the same failure rate will be reflected in more negative posts for the higher volume sold)
And I personally do not like the way Newegg ships multiple OEM HDs - I think there is a higher possibility for damage from their way of packing these.
Also when you buy a single drive you often may not go for the lowest priced one as there will be other considerations - speed, warranty, etc.
But when you buy multiple units especially for our purpose the price you pay may take a priority and when you order the WDs they may take a hit during the shipping due to the Newegg's way of packing but of course you will blame the WD reliability...