I've decided to get a 13" MBA - my first Mac in over 12 years. However, I'm not sure whether to get the 128 GB or the 256. And if I get the 256, should I upgrade the processor? The MBA will act as a "second" computer, mostly for me to use for blogging (I'm a style blogger). I also edit photos and sometimes, video. What do you think would be ideal for me?
Thanks!
It's going to really be impossible to know for certain whether you should get this or that, in terms of upgrades.
128GB is sufficient enough for lots of programs, and a bit of storage. You could carry around a 64GB USB flash drive (they're not too expensive, can be had for about $1.25 per GB if you find one on sale). Or you could upgrade to a 256GB SSD.
What I would personally do, if I were buying the 13-inch, is I would buy it as-is. 128GB storage, 4GB RAM, and i5 1.7GHz processor. But what you may want to do may differ.
Here's some universal advice: Don't underbuy, making you kick yourself for not spending a tiny bit more. If you overbuy, you may feel like "oh, I wasted some money" <-- not such a horrible feeling since you'd already be spending $1300+ anyways. If you underbuy, you will feel much worse, going "oh, I wasted a TON of money" <-- horrible feeling, since you will feel like the purchase on a whole wasn't as satisfying as you'd have liked it.
I'm not saying you should go for it, nor am I saying that you shouldn't go for it. But it has to be up to you. The i5 should be more than sufficient, however going for the i7 will probably be better if you're getting a 256GB SSD: the main reason is that will improve your resell value by a better amount. I'm betting anyone who wants a 256GB SSD on a used Macbook Air in a year or two might want it to be decked out with the i7. It's always a good idea to keep your resell value high... it gives you options incase you decide you really love one of the newer Airs down the line.