I found for a lot of tech stuff you just have to frequently check for deals on a regular basis. This has helped me a lot with more generic computer hardware since you do not often need a specific part just something that is relatively cheap for its feature set and brand. Also I have found that if you intend to make an expensive purchase or buy a lot of hardware in a specific area it makes sense to search for that segment frequently or check multiple retailers. Camelcamelcamel is useful for amazon stuff and I have been setting price watches for discounts. Sometimes for products on amazon I will click on a few different products and see if they have significant discounts in the used categories. Sometimes these are just a few dollars but depending on the product they are just returns or sometimes entirely new and sealed. In general just having a lot of knowledge of what your buying and willingness to wait can save you a decent amount of money.

Edward Snowdon reads a spec sheet

Nachos