I hate going against the grain, but I want to make a couple points:
1. The C2D is old technology, and I don't care how much you or anyone else tries to spin it. The current 13" MBP is quite expensive given the components that are inside of it. Talk about paying a premium for a Mac! I get the reasons for using the C2D, really. But I wouldn't recommend anyone buy the current configuration; a PC laptop will get you much better specs for cheaper.
2. How can you guarantee that the 13" MBP will last this user 3-5 years? If I think back to my computer needs 3 years ago it was all about Email and IM. Now I am doing programming, Photoshop, and even getting into video editing. I always recommend getting the best you can afford because you never know how your computer use is going to change. Recommending the purchase of a laptop with a severely outdated processor and stating it will last 3-5 years is absurd.
As a general note, and an expansion to point 1, I get the feeling that the fanboy mentality is pushing this "C2D is still OK" idea. Look at Apple's competitors and the laptops they are putting out. Here's an example:
http://www.newegg.com/Product/Product.aspx?Item=N82E16834220772
That's what, $300 less than the MBP? And it has better specs. Granted, it doesn't have Mac OS X, and there's a lot to be said about the value of that operating system. But specs matter, and the 13" MBP with a C2D is just plan ridiculous at this point, regardless of how much everyone's love for Apple causes them to spin the truth.
The 13" MBP needs an i3 processor, and Apple should have found a way to get it in there by now. Or at least drop the price of the model to something a bit more acceptable.