In 1990 a Scottsdale 486 w/ 4MB of Ram and a 211 MB hard drive cost $6737 (plus tax).

In 1992 a Solidtech 486 w/ 4 MB of RAM and a slightly-smaller 125 MB hard drive sold for $2195

Both advertised in Computer Shopper and you can find their catalogues(?) online.

My numbers were slightly off apparently, but is that enough to change the point?