Yes, I believe Zenith was based in Chicago too.
Depends what you're into I suppose. I did some quick searching and I grab any of these. Including a Philco Predicta for only $50
http://grandrapids.craigslist.org/atq/1499782098.html (Predicta)
http://grandrapids.craigslist.org/atq/1461406120.html (nice Philco)
http://grandrapids.craigslist.org/atq/1468302861.html (nice Sparton)