Why are prices online so unpredictable these days?

The service mentioned here (Paribus) seems great, but there is no way in hell I'm giving them unfettered access to my mailbox to scan for receipts. I understand that the balance between privacy and convenience is different for everyone, but this is way beyond my comfort level.

If you're looking at stuff on Amazon, CamelCamelCamel is your friend. Check out historical prices for most items and create alerts for when the price drops to what you want to pay for it.

It seems like a more interesting approach to take advantage of price discrimination would be to execute &#x27;persona swaps&#x27;.<p>That is, if Amazon is offering me a microwave at $100 and offering you the same microwave for $120, could we digitally switch places so you could order the microwave at $100 if you wanted?<p>A common method of e-retailer price discrimination is coupons so it&#x27;d be interesting to do real-time swaps in these situations too.

I tried out Paribus after it was on PH. It connected to my Gmail and Amazon accounts, scanned for a couple hours but didn&#x27;t show me any opportunities for savings&#x2F;rebates out of hundreds of transactions. Love the concept but probably won&#x27;t be coming back.

i get this with flight tickets. they go up whilst im booking. If i don&#x27;t book but wait, they go back down. anyone know how this works?

Install in your browser disconnect (2?) and cookie cutter (I think that&#x27;s the name - sorry, on cellphone). It&#x27;s a completely different experience on the web. Your cookies are deleted every session and all ad&#x2F;monitoring links are blocked.<p>Everyone thinks that this is the first time you visited their website.