The best coffee gear is usually the thing you can clean quickly and use without reading a manual. For many kitchens, that means one simple pour-over setup.
Pour-over works well when the filter and carafe are easy to rinse. It also suits people who want coffee in the morning rather than a hobby.
If you drink more than one cup, an insulated press can be more useful than a new grinder. It keeps coffee warm while you get on with your day.
Small coffee setups work best when the routine is easy and forgiving. Anything else is usually decoration.