With the exception of the lathe, I would consider all of the machines to be antiques. Antique machine tools are not like antique furniture. They might be worth something to someone who is building a museum. Otherwise, they're worth their weight in scrap iron. Lack of familiarity with machine tools in general and the limitations of old machine tools can feed into the belief that old iron is better, and more valuable, than new. If you are truly interested in something that is listed for a ridiculous price, save the contact info (if you can get it) and wait a month or two.