Not sure I agree with the sentiment of "I bought the game for one system, so I can pirate it for all others." However, one situation where "Piracy" is not actually wrong would be obtaining or making a copy (Say a CD/DVD rip) of a game that you have actually bought so as to play it even after the disk breaks, which they occasionally do. The same applies to NoCD cracks.
There you go. Enjoy the brief version of my long, rambling thoughts on the matter.
There you go. Enjoy the brief version of my long, rambling thoughts on the matter.