I'm thinking of getting a 128gb MacBook Pro 13 inch screen. I know the 256gb is the better option but I can only afford the 128 right now, so few questions. How much of a drawback is the 128gb hard drive? I use photoshop a lot, and I'll hopefully be able to do a bit of 2d Unity game dev, although mostly I just use Scrivener to do writing. I don't think it's possible to upgrade the 128gb hard drive on the latest models, so is there any way to mitigate any issues? Would using a memory stick help?