Was in a thrift store last week and walked past a box of old kitchen knives. Picked up a 9" fillet knive with a wooden handle that I thought might be a Chicago Cutlery but it was an Ecko Eterna. It was surprisingly sharp so I looked a little harder. Also in the box was a butchers steel. I stroked that Ecko knife and I could tell from the feeling of the knife on the steel that it was getting sharper. In no time at all it would shave.
It only cost $1 and is probably as good as the knives we use professionally at the dock at a fish cleaning service. You just never know what you can find that someone has discarded.