My last hunt, I came home with a few wheats, an obliterated V nickel a .32 Henry Rimfire shell, and a neat lock plate for a pocket door (plus a lot of trash). I could sell the lock plate for around 5 bucks if I spent the time to clean it up, that would be around 2 hours, add in the 6 hours we spent on the site and think of working an 8 hour day for 5 bucks. I'm not unhappy with it, I like the things I dug, but as far as trying to make money out of it, well I'd rather have a job.....
I don't care if people sell their finds, you found it, what you do with it is up to you, but to say that you are detecting a tot lot "for the money" is asinine. When I go out of my house to make money I call it going to work..... when I go out detecting I call it a nice day outside. I'll admit I would not complain if I hit a jar full of double eagles, but I'm not expecting to find one, or anything other than what I find for that matter. If you go out with "I'm going to get a big score this time" in your mind, you may as well stay home and get a lottery ticket..... the odds are about the same, and you won't be tired from walking all day.
By the way.... I have hit a big cache.... but with a crowbar not a detector, I still don't go thinking to myself every time I tear out a wall that I'm going to find something valuable, because I know that most likely I'll get nothing more than plaster dust and a mess to clean up before I leave the jobsite.
As far as "treasure", it's what you want it to be. A coin might be treasure to someone who has no concern for old bullets, and an old bullet might be more prized to someone than a gold ring. We're all in this for our own reasons, and I really don't care about yours, I just like to see what pops up next.