Being that you are in/near a major city; by all means check craigslist & newspaper classifieds for old top quality commercial tools. Here in Ct, the newspaper usually gets high prices for those quality tools, but it is still worth checking.
You need to set up some "favorite searches" on ebay, too. Most bulky used tools are usually a "pick-up-only" on ebay and that keeps the price WAY down. I picked up a 4 foot box & pan brake cheap about an hour away.
I prefer a used commercial tool vs. a new cheap tool IF it is something important. I still use my Miller 35-S mig that I bought used back in 1978/9.