That's a great breakdown of classification. The only issue I see, that has already been raised, is that it requires at least two parties (buyer or seller) agreeing to the classification. This is where it can develop the "grey area" - as the definitions might be interpreted differently.
However - I agree with all of the terms - and obviously, a lot of thought has gone into it. If a charter like this was adhered to, it would justify the long hours we put into our restores. It may just be a "hobby" or "pastime", but it can be difficult for us to value a game. Do you value the game on the amount of Hours it owes you, or the "market" or "eBay" price ?
Similar to Mark, I have no problems putting in the hours, as collectors appreciate the level of detail we go to. There is no way a dealer can spend the amount of time and resources to attain even an 8.0 + - just not viable.
for me - I'll buy games around 4.0 and enjoy the challenge and the journey towards a 9.9
Well done Mark !