alt Hacker NewsThere is more to it than just accounting for inflation. Apple has done a number of other things in the meantime, including designing and manufacturing their own chips, that have changed the economies of this. Until the very recent RAM price explosion, a sub $500 computer in 2008 was probably more like a sub $350 computer today.
Inflation goes up - someone who could buy a $500 computer in 2008 should be able to buy a $766 or so computer today (cite: https://www.usinflationcalculator.com)
But today, if you can finagle the EDU discount, you can get a MacBook Neo for $499 ($600 without) which apparently isn't really compromised in any major way.