Hi All! First time Mac buyer here I am having a hard time deciding between MBA 4GB RAM 128gb base model ($1099) and 8gb RAM 128gb flash "limited edition" (or so they call it) at Best Buy ($999 sale price). All other specs besides RAM are pretty much the same between the two. I am definitely inclined towards the latter but thr catch is Best Buy is trying to get me to buy a 2-yr service plan ($250) telling me that I am pretty much screwed when my motherboard crashes since apple may not carry those parts, and if that's the case they will replace my mac with a newer model. Would apple not carry these so-called limited edition parts for repair? What are your opinions on this? I havnt had such a great experience with Best Buy and their service in the past and it makes me a bit cautious to just go along with their pitches.. Perhaps its better to stick to a base model from apple? A shallow search on 4gb vs. 8gb Mba gets me the impression that I may not notice much of a difference for the basic ltasks I will be using my mac for (word processing, browsing, photoshop) Looking forward to hearing your thoughts!