An Apple II in 1977 with 48k RAM was $2,638.00.
http://oldcomputers.net/appleii.html
I would have to say product value has improved a bit.
In adjusted 2007 dollars that $2,638 Apple II computer would cost $9,810... that makes the new $2,799 Mac Pro quite a bargain!
And that Mac IIFX, which sold for $10,970 in 1990, would sell for $17,786 in 2007 dollars.
If the Mac Pro were sold in 1977, its adjusted price (using 2006 dollars) would be $818.12. That is really inexpensive...
:’) The Apple II was a great value in 1977.