No. of Recommendations: 2
If you look at the "All Households" line of that table (Table 29 for those of you who have a copy of the study), you would see that if your maximum age of life is 80, your total increase in discretionary spending is $4535. That's it. Less than $5k. If you live to 85, the increase is ~$25k. Living to 90? $57k. 95? $85k. Even were you to live to 100 in the "All Households" category you would see $116k increase.
Sounds like you are saying that for pretty much anyone, taking social security at age 70 instead of at age 65-67 will give them an overall increase in spending money in retirement. And furthermore, for people like us (that discuss this stuff on message boards) who tilt toward affluence, we will live even longer on average and benefit even more. It really sounds like that is what this [math] is saying!