I am really surprised that in 6 pages, no one has suggested you try out a Busse. I feel it is my duty to point you in the right direction!
A new TankBuster from Busse is not too pricy. Kinda surprising, because it is actually within your originally posted price range, and would make a real work horse. Don't worry too much about the coating. Just use it, and once it gets beat up, strip it and keep on using it.
They are tough, and have THE BEST WARRANTY IN THE BUSINESS.









Ok, all kidding aside,
buy what you want. Busse's proprietary steel is INFI, and no one else can use it. The chemical composition is not a secret. Their heat treat is extensive and time consuming. I think I remember hearing it was 40 hours or something.
Buy what you want. If you ever get the chance to use a few Busse's try them out.
In the price range you are listing, keep an eye out on the custom exchange here. There are some great deals for user's.
I have owned a lot of knives before Busse's, I still own knives that are not Busse's, and I will buy lots of other knives that are not Busse's. But I will always have Busse's for hard use.
Take a look at Scrapyard or Swamprat knives. They are harder to find than some, but are a great hard use value with the same warranty. Forever, passed on with the knife.
Here are some of my favorite makers on here
Siegle, Koster, Bailey, Grossman (sp?), Laccoino (sp?). Lamey, . I know I am missing some of my favorite