DW is Japanese, thus longevity in her genes and in her upbringing, so 100 is the age we plan for.
That said, neither of us thinks we will make it that long. I'm thinking about 85 for me, and perhaps another 5-10 beyond that for her (we are the same age). Also, we saw something on TV the other day that was kind of shocking. There was a 90 something old lady who was being cared for by her 70 something daughter. The 90 plus year old had not been out of bed for 5 plus years, and had not eaten solid food for 4 plus years, as she was too weak to eat, feeding being accomplished by way of a drip tube strung thru her nose. I know there is another thread going on about this topic, but while I would be happy to live to 95 or 100 if I was able to lead a relatively active, relatively self sufficient life, I certainly don't want my 70-75 year old son or daughter to have to care for me like that for so long. While I cannot justify suicide (religiously speaking, and I know others believe differently), I would hope that when the time comes, my family will let me go instead of putting us all thru that kind of misery.
R