Is this a decent buy for a Macbook Air?

[kmarketing]

Hi,

I am so excited with the new Macbook Air's, and was intending on buying a new one.

A friend is also offering to sell his old 11" 1.6ghz/4gb/128gb Model for $800. Is that a decent buy? Will I be missing much in features like the new processors?

I've been happy with my computers (Core 2 Duo) but any extra speed can't hurt!

Please let me know what you think,
Thanks!

 

[FrankHahn]

I'd say that you better buy a just-updated one because several new technologies are in the new Airs in addition to the faster CPU.