it's the bane of the manufacturer/distributor model...Yeah, buying direct from Hipshot is always going to be more expensive
The manufacturer can't undercut their distributors if they want to keep them.
And they can try to persuade the distributors not to undercut each other, because ultimately it cheapens the value of the brand, but they have limited power to enforce.
Maybe it's just me being paranoid, but eBay used to be infested with pirate offshore counterfeit parts. i expect the reputable dealers have protections in place, but i figure it's always a gamble with some unknown eBay vendor....there's a LOT more hardware available on the 'bay now.