I did that before I asked, and found a Wright house 2 blocks from where I grew up (in Beverly, not Oak Park) that was a "money pit", because the previous owners had built an addition and plastered around the interior, and they decided to restore it and add period-appropriate window decorations. I didn't find any references to money pit Wright houses in Oak Park.

I'm the weirdo who actually reads our local newspapers, for what it's worth. Like I said, I actually live here.