Okay I should've checked what that is in non-fetishist (normal) units first. Yeah 30 meters is still within copper range, albeit a bit unwieldy. Still, depending on how you want to run it and where a thin fiber cable could be the better option. It's thinner and more discrete, cheaper per meter, but at the same time more delicate, waaaay more expensive if you're planning to cut it to length, and requires dedicated SFP+ inserts and SFP+ devices (SFP+ assuming you want to utilize that 10G of bandwidth).
You definitely want to use fiber in your house if you want to connect your garage, garden shed or other remote building to your home network. Again, cheaper, thinner, and you don't have to worry about moisture or corrosion unlike with copper wiring.