Direct from Amazon is pretty damn safe.
I've had great luck with it.
Just got a Byrd Robin 2 G-10 in the mail from them yesterday.
I guess I could have bought it somewhere else, and paid $12 shipping on a $33 knife that I was buying for my upcoming trip to Chicago, where I wanted a cheap knife in case the cops there decide to take it despite it being under their length limit.
Or, I could do like I did, and get a genuine knife, plus a movie for less than it would have cost for the knife plus shipping from elsewhere in Canada.
If you're buying a $500 knife, then the $12 shipping charge from somewhere else isn't that big of a deal.
Only problem I have with direct from amazon is that people can order, and then return a fake, Amazon has no clue and sends it on to the next purchaser. Where as bladehq for example I would hope they have the knowledge to look over the knife that gets returned before sending on to the next order.
In the end, I started my knife buying on Amazon only, now it would take a whole lot for me to still use them for blades.
Be safe in Chicago land my friend!