I agree, but caution the 12 year. Some machines fly through the inspection with little or no extras above the mandatory parts list. Several however, have needed major components replaced, including MRGB, TR drive shaft, fenestron blades, MRH, etc. Mine has just come back after 5 months away and a $200k spend and I was talking to another owner yesterday who has just spent $450k after being on the ground for 9 months awaiting parts
However, as you say - the comparison between the 66 and the 120 isn't really a comparison at all. In fact, I don't understand why the 66 is so expensive!!