Hey, The upgrade from 512gb to 1tb for the new 15" rMBP is $500($450 with education discount). How much extra would I be able to sell a 1tb a year from now compared to a 512? Like say I can sell the 512 model for $2000, would the 1tb version be worth $2100? Or $2450? And on the same note, how much do you think I'll be able to sell it a year from now?