This is getting off-topic but I disagree, people should indeed think about what they spend their money on and if you think this is not useful that's perfectly fine.

However, people should also spend their sats. Huge fan of this article which explains why.

Last but not least, the repairability of open source hardware projects is very high. If it breaks you can just replace one of the components to repair it cheaply or use the components in other projects. In both cases it doesn't become electronic waste as closed, proprietary stuff often does when it breaks.