I just returned a mid 2014 Mac Book Pro 15, I used it very little and had a problem with the display. Now I need advice on when is the best time to purchase another Mac Book. I assume another new addition won't be out for some time? I have a question about using AppleCare vs a Credit card that doubles the standard 1 year warranty. Has anybody actually used the CC extended warranty? And if so what was the CC brand and what was your experience? Thanks!