good functional custom sword that you depend on can run $2000-3000.
I am forging a functional Drizz't scimitar with sapphires right now.....
My custom katanas sell for 3000..... please mind you this is custom hand work.
Most mass produced collectibles are made of Stainless which makes a crappy sword that will shatter or made with a carbon steel outside the US and quaility control is lost. uneven heat treat, warpage , or worst stress fractures in the steel which will break the blade during use. I cant speak specifically about any particular companies the mass produce but I wouldn't use a collectible sword for anything but a wall hanger