Totally valid. It doesn't have to be tech-oriented, but something a tech-oriented person would enjoy. I found some cool camping gear as well as [tools](https://www.amazon.com/GearWrench-85035-35-MicroDriver-Set/d...) for my vehicle.
Or this cauterizer for tying better flies: https://olefloridaflyshop.com/shop/tying-tools/misc-tying-to...