> Is this clearly a result of Amazon's own dynamic pricing or simply third party sellers undercutting each other which is common on close out or soon to be repl

> Is this clearly a result of Amazon's own dynamic pricing or simply third party sellers undercutting each other which is common on close out or soon to be replaced items? Bingo! Monitoring prices on Amazon without using their API is a Sisyphean task. They can show a price from any of a bunch of sellers; and which one they pick depends on the overall price, the stock at hand, etc.