I use mine to surf the web and check\reply to email when I travel (I travel 300,000 miles per year).
Here's what went into my decision, and hopefully it'll help others....
What I use it for:
- Surfing the web
- Email
What I have now is a 2012 11" "Ultimate"... My hard drive has next to nothing on it, my i7 runs warm, and the battery life is terrible (3-4 hours).
I am planning on buying the new base model 11" 1.3ghz\4gb\128gb because everything I do can be accomplished without any difference on the new model, but the absolute primary driver is portability with long battery life, and the new model absolutely solves that issue.
If it's a primary computer, max that thing out as best as you can for the dollar, but many people are like me who use it almost like a netbook, just when traveling.
I travel to many countries, often times poor\developing countries, and I know I'll feel better knowing I have a $999 laptop in my bag vs my old $1750 model.
But as always, there is no right or wrong.... if you are an average user, you won't notice a bit of difference between 1.3 and 1.7, nor the difference between 4gb and 8gb. Most people who use the 11" use it for websurfing, and word processing, none of which are significantly noticeable when bumping the specs. People will argue till they're blue in the face, but try it yourself, and you'll see.