Wow, times have changed in 2 years.
I bought my 2008 white macbook from MacMall, as it was a heck of a lot cheaper than Apple, and I could get a better spec'd BTO machine at the time. and the motherboard being used only accepts up to 2gb ram.
2.4 ghz, 2gb ram, 250gb hard drive. that machine, modem (which I never used), mini DVI to VGA, mini DVI to DVI, final cut express, iwork 08 (which is the version I am still using), Applecare, and Aperature cost me over $2500 at the time. And that was with no tax and free shipping.
Now, if I go to Apple and spec the same thing (of course we know it is using faster processors, has a better battery, and better display than my 2008) - the cost is almost 1/2 the price (well half would be 1250, but apple is showing $1556 - close enough).
I would probably consider an upgrade if I had the money, but then again maybe not. My machine is still running perfect. Although with my ipad, it is getting less use now. I only use it for video editing and mass storage now.