sophijo,
you made the right decision. Since the BK-7 is carbon steel, that pit could very well get larger and larger and larger without your knowledge. Then one day a huge chunk of the coating could flate off, revealing a nasty hole and rust and crap! Then again, the rusting could have stopped and things would be AOK. Point is, though, that a pit like that is a defect that is of concern and it should be looked at. Best done now than you needing the knife and it breaks on you.
Spiderken: Want one of the best blades, dollar for dollar, out there? Get the BK-7. it is made by Camillus knives, under their Becker Knife and Tool name. CHeck the Camillus forum here under the makers and manufacturers forum. The knfie can eb thought of as a replacement for the famous Marine combat/utility knife, a.k.a. the "kabar". This knife has a full flat grind, is made of great steel, is much stronger than a "kabar", and comes with a nylon sheath with a pocket on the front for a folder or a sharpener or multi-tool, whatever. For $50, you can't go wrong.
