[wfo]

Technically it costs bandwidth and electricity I suppose to make information available...

Not suing people for repairing or tinkering with your hardware is also a "cost" I suppose if you want to phrase it that way, because of the lost revenue you would have gotten from locking down the market and only providing overpriced replacements yourself. It's a cost in the same way that a law against stealing purses imposes a "non-zero cost" on all of us, since we don't have that potential source of revenue available to us anymore...