I am moving away from devices that have inbuilt non user replaceable batteries. That's been my single largest gripe over the last couple of years. It also seems to be the easiest method for manufacturers to build in obsolescence into products. Once dead, the product gathers dust with me forgetting the whole cycle of having to get it repaired or serviced.

The other one is headphone sockets in devices. I want wired headsets, not dongles and missing DACs.

Non smart TVs and Displays. No, I do not want internet connectivity built into a display.