I mean, that's how tech. works.
You buy it, three months later something else comes out that's better for the original money you spent.
The point is, you get the usage out of whatever you bought and don't have regrets for not having waited.
For instance, I bought this thing when the refresh came out for the Macbooks several months ago. It was a bargain refurbished.
I probably wouldn't have noticed the 200 MHZ upgrade anyways, since I upgraded the HDD and RAM myself. Apple charges too much for hard drive and memory upgrades. It's understandable though.