I use a mac for work (and paid for by work) but refuse to spend my money on something I can't use the way I would like to use it. I think that these companies shouldn't be able to lock you out of you using your tractor/car/computer like everyone seems to be moving towards. It's a real shame. I understand if they want to void the warranty because a user blew away some critical firmware, but that's another ball of wax and it's on the user to suffer the consequences.

Agree wholeheartedly!

Void my warranty, boot with a scary splash screen, whatever, but don’t lock me out of the thing I ostensibly own. Or, maybe change the “buy” button to a “license to use” button in your store.