On: Mistakes to Avoid When Buying a MicroSD Card (2018...

[eitland]

Any advice on where to get good cards for Raspberry Pi usage?

I mean it seems like most I have had wear out way in a few months even with next to no use.

[finchisko → eitland]

Also make root fs readonly. DietPi distro claims they do it out of box. Same for openwrt, they mount /var dir as tmps and do writes only there. For raspbian http://blog.pi3g.com/2014/04/make-raspbian-system-read-only/.

[lozf → eitland]

Previous discussion suggests using cards designed for Industrial use, and/or minimizing writes (e.g. mount /var on a tmpfs) where possible.

More info in the comments here: https://news.ycombinator.com/item?id=16775768