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Black Friday not the cheapest time to shop, says consumer group
(www.theguardian.com)
This is a most excellent place for technology news and articles.
I also like tools like Honey or CamelCamelCamel, which show you the actual price changes over time, and you can decide when the right time to buy is. Obviously, you never know when something will go on sale in the future, but it at least helps you see how good the current price is compared to the past month or year.
Keepa makes Camel x 3 obsolete, it shows far more information
when you pay.. which costs more than prime itself does.
I think even the free version of Keepa is better to use. I see that for free accounts there are restrictions, but I haven't noticed any at least with the Firefox addon.