Let's say the EULA said, "by purchasing this software you agree to let Apple take your first-born child." Would Apple then be able to legally do so? You bought it, so you agreed, right?
I imagine that Apple is not within their legal rights (I hope...) to take any of your children just because their EULA that you agreed to said they could especially if the EULA is inside the box when you purchase it rather than something you can read on the outside.
How this relates to the discussion is that so many people are ranting about how the contract is valid if you and apple both agree to it, but that's not necessarily the case. The agreement has to be reasonable. I'm not saying that what they put in their EULA is not legally binding; that's for the courts to decide. But what Arn and many of the seemingly more level-headed people are saying is that the topic isn't so black-and-white...
Personally I think I should be able to install software I purchase on whatever I want**if I can get it to work myself. The software company has no obligation to give me technical support, but I feel I should have that right, just as I should have the right to modify the code of any software I buy, as long as I don't resell the "improved" version as my own.
In addition, I'm just wondering what you guys think I'm within my rights to do if I find a copy of OSX on the street or in a trashcan. I haven't purchased it, so technically I wouldn't be bound to the EULA (if it is legal). But I can still install it. Or maybe I can't (legally)? I don't know. I would think that since the product has an infinite lifespan (it's not something that is revoked after a year of purchase unless you renew it), then I would be able to install it. Maybe not though.