> It's not that complicated or costly to enforce.

Two points.

- What is your evidence that it is not complicated or costly ? Remember that lost profits because of repairs is a perfectly valid cost to be considered here. - Someone builds a device, it is their device and they are selling it to you with full advertisement that certain parts can not be repaired. How moral is it to impose additional restriction on such an entity through government coercion ? Seems immoral thing to me. Today it is about repair, tomorrow it will be something else.