Probably for limited audience, only if you have optical mechanical keyboard(s), as these switches do not have metal pins and they are not compatible with traditional mechanical keyboards.
Only the 90 packs are $9.99, not sure if it is pricing error, works out to 11 cents a switch if they do get delivered.
- Red (linear) - https://www.amazon.com.au/dp/B09WX9CLPH
- Clear (light linear) - https://www.amazon.com.au/dp/B09WWY3SG9
- Black (heavy linear) - https://www.amazon.com.au/dp/B09WWMBWD9
- Blue (clicky) - https://www.amazon.com.au/dp/B09WWWY98T
- Brown (tactile) - https://www.amazon.com.au/dp/B09WXCDR1X
Yellow is also linear, in between Red and Black, but at much higher price.
some of the 120 packs look to also be priced down at $9.99 (brown, red, silver, clear) and $9.98 (blue)