A lot, just under 2K, but I look at it this way. At 2K I'm getting almost (perhaps equal) the same quality of coin at 1/4th the price of a non CAC MS67, I was willing to accept and pay the price knowing that. And as I said paying 8 or 9K for an MS67 is just not something that I feel comfortable doing, that is a lot of money tied up in a single coin given the rate of gradeflation that has been happening over the past five years. If 9K was just pocket money for me then it would not matter, but spending that much only to see the MS67 pops double at some time in the future and the value plummet is not a risk that I am comfortable taking. This MS66+ coin provided an acceptable risk/reward calculation for what I think is a very appealing coin, and the CAC bean should help keep any downward price movement to a minimum.
I have not looked at the numbers but I do think you are correct that this change will put my set into the #1 slot for overall and NGC only scores for now, that was not a goal or desire for my set but this NGC coin is just so nice that I could not resist what I saw as a way to improve my set with the best coin.