[stjohnswarts]

Probably "buyer beware", if you're buying something that expensive then you should look around and not just assume Amazon has the lowest price.

[CyberDildonics]

It is not always that simple. Part of the arbitrage can be generic things from aliexpress bought in bulk and shipped from china over 8-10 weeks. The mark up on amazon is partly the fact that the long ship time has already been done.