Pi 400 Still widely available. Is it because it’s no good?

9to5 Mac article on Crypto. Worth reading the comments.
https://9to5mac.com/2021/11/10/m1-pro-macbook-pro-cryptocurrency-mining/

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Pi 400 https://amzn.to/3tgKjct 
Ugreen sata usb https://amzn.to/2VXBFBT
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Ice tower cooler https://amzn.to/3yPxGFx
Pi 4 cluster case  https://amzn.to/3A5qcPP
Similar Bluetooth mouse https://amzn.to/3MX4Cne
Samsung Bar 128GB USB https://amzn.to/3lYaYHF
Similar usb soundcard https://amzn.to/3weo9JX
Elegoo FDM 3D printer https://amzn.to/3IpQS1p
Screwdriver kit https://amzn.to/3zP8csb
Logik K400+ keyboard https://amzn.to/3BUiDN5
Xbox 360 controller  https://amzn.to/3z1CJDj
My capture device Avermedia GC513 https://amzn.to/3G1LPDQ

Amazon UK Links
Pi 400 https://amzn.to/3ieMMOt 
Iitrust short usb sata https://amzn.to/3GjzGK5
Crucial 240GB SSD https://amzn.to/37LLc0V
cluster case https://amzn.to/3mDOnOh
Ice tower cooler https://amzn.to/3mG1CxJ
Samsung 128GB Bar https://amzn.to/3pomTAH
Bluetooth/usb Mouse https://amzn.to/3qfKG5s
Similar usb soundcard https://amzn.to/3CRcSAx
Iitrust short usb sata https://amzn.to/3GjzGK5
Elegoo FDM 3D printer https://amzn.to/3GO9yY5
Kingston 64GB A2 https://amzn.to/2NTnkPm
Mscien power adapter https://amzn.to/2Kfi6yM
Pi 400 https://amzn.to/3lqnCwr
Mouse  https://amzn.to/3kuaYem
Official Raspberry Pi power adapter black https://amzn.to/3pHyiJj
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integral usb 3.1 sd card reader https://amzn.to/3rXnckI
YCCTEAM Xbox 360 Wireless controller https://amzn.to/38to6ya
Logitech K400+ keyboard trackpad https://amzn.to/3otsF0EOfficial
My capture device Avermedia GC513 https://amzn.to/2MnbXhW