price of 1700x ranged 299 to 369 why?

[mahmudulhasan6246863]

Price of ryzen 7 1700x varies from $299 to $369 why? And what is the difference between these? Which I will choose?
I'm getting confused which one I should pick.Amazon prime has two offer one is $299 and other is $350
Why?

 

[CountMike]

Because ..... sales ?

 

[lperreault21]

uh. Because of sales. Get what ever is cheapest.