I certainly don't see why the discussion is "stupid".
A 2009 Macbook Pro which is also "Core 2 Duo", can sell for as much or more than a much more powerful 2010 Macbook Air. Doesn't make sense to me.
And I'm still amazed that folks have no clue about the RAM and SSD size issues. I've seen base 2/64 configurations sell for as much as $50 MORE than 4/128 configurations that cost $400 more at time of purchase.
Put another way, today you can still get $700 for a 2009 Macbook Pro C2D, that only cost $1000 (back to school promo that year). vs. $650 for a 2010 Macbook Air that cost $1400 (no good promos). Thats clearly not a C2D issue. Something else going on.
BTW, the 2010 C2D performs very well for typical activities unless you're doing video compression or other heavy lifting. And it runs cooler than the newer i5/i7.