trcollinson is exactly right focus on the value your machine is bringing now. That being said every evidence point to a major upgrade in December, so unless yo

trcollinson is exactly right focus on the value your machine is bringing now. That being said every evidence point to a major upgrade in December, so unless your really need a new computer waiting is the safest bet a this point. Specific advice : 1 - Don't get this generation macbook air or non retina macbook pro those are just bad value 2 - which ever decision you make,understand that in 6 month you won't care 3 - One way to edge your bets would be buy a used macbook pro now, resell a later when/if you decide to upgrade. Macbook have a great resale value, and by buying used you avoid the biggest part of the asset depreciation which appends in the first couple of years.