http://en.wikipedia.org/wiki/Apple_Computer,_Inc._v._Microso...
http://en.wikipedia.org/wiki/Graphical_Environment_Manager#L...
Buying their products is saying, with your actual wallet, and your actual real money in completely unequivocal terms: "Yes, I fully support these blunt litigious anti-competitive tactics. Please do this more."
It's almost like a more evil serpent version of the Windows tax: http://en.wikipedia.org/wiki/Windows_refund#The_.22Windows_t...
What if Apple spent all this lawyer money instead on making a superior product that would beat their competitors, you know, because it was a better product, and not just go around and be the corporate Tonya Harding?