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Re:Amazon stops selling Dash buttons by xref on Monday March 04, 2019 @03:46AM (#19299745)
Amazon prices fluctuate wildly depending on myriad things: user/IP (can jump on tor and see prices change), stock levels, time of day, A/B price testing etc etc. viewing the price graphs at camelcamelcamel.com are really eye opening

Basically I’d never be able to trust I was getting a fair price at the instant I pushed the button.

Re:Amazon stops selling Dash buttons by cs02rm0 on Monday March 04, 2019 @07:32AM (#19300741)
That's interesting, I haven't ever noticed that (not suggesting it doesn't happen, I'm sure A/B testing must happen).

I use camelcamelcamel a lot and haven't seen any discrepancy between what I Amazon shows me and what camelcamelcamel alerts. Maybe I'm mostly tracking slightly higher priced items and they're less subject to change?