Well did you need a new one last month? If the answer is yes, then why haven’t you upgraded last month? If you waited a month then you can wait 2 others… if the answer is no then why you need to upgrade now? The only possibilities I see is that the computer stopped to work, is broken or something like that… But for most people, I think their Mac works…Not if I need one now, why wait and pay 30% more.