btw when you buy a piece of software you dont own it you own a licence to place a copy of it on your machine. that licence is separate from the media which may not even be present (ala microsoft oem deals)
fair use laws allow you to load that software from almost anywere (even microsofts eula allows loading over a network)
fair use laws also limit how much the licensor is allowed to resrict your use of the license. in other words apple, or amiga, or ms can say thet you are allowed to use the sowtware on a specific piece of hardware even if there is no legal way that they can enforce that. that what is meant in most eulas when they say that state or federal laws may change or void certain parts of the eula.
thay can claim anything they want to try to scare you (nintendo)