Clothes Washers and Driers.

The less settings the better, the less bells and whistles the better for longevity. I've got a pretty basic clothes washer where the only thing that occasionally breaks is the agitator (tower thing in the middle of the wash drum with fins) and replacement part is something like 30$ US. Can't remember the brand, Maytag or Kenmore probably.

I've been able to repair the dryer when it breaks, usually its just the heating element and/or a thermal fuse that burns out. (Lots of animal beds and cleaning towels build up lint in the exhaust hose that I don't always remember to clean out when I should). Heating element is like 30$ US after shipping, fuse is like 5$~10$, and everything is pretty straight forward to find, check, and replace. Doesn't take more than an hour max once the parts are in my hand. Brand is a Kenmore with a manufacture date somewhere in the 1980's.

There's a few websites that seem to always be available that sell parts, almost all of the ones that I've tried to use have parts diagrams and parts lists that sync up with the inventory that they sell. Some even have basic How To videos for troubleshooting and installing parts.