So the 4 gb of ram isn't really that important? I assumed it made a big difference. That would save me almost $90. I am now leaning toward the 13". I Can afford (justify) the $90 for the 4 gb upgrade if it makes a noticeable difference. The $300 or so to jump to 256gb SSD and 2.13 seems like alot. And I just have a mental block spending $1,600 on a laptop, albeit a very amazing, compact laptop. $1,250 is right around my mental limit. I know it's only $350, and I could "afford" to do it. But it's my first Mac and I'm hesitant to jump in that heavy.