55 is a good retirement age. You should still be able to enjoy AH even with slightly diminished reflexes, but you may have to limit yourself to Spits and La7's.
I was shooting for 58 myself but with health care and insurance premiums increasing the way they are that may not be possible.
Retirement doesn't mean what it used to, I hope to have my teaching cert by then, maybe give a little back before I go.
[cheerleader mode] Go DOW Go DOW [/cheerleader mode]