Mcmann, the fact that you are retired and still out their 'living' and not sitting in front of a box watching daytime TV and eating cookies while waiting to die, answers your question. Anything that keeps you out there, thinking, doing stuff, enjoying life is easily justified.
Hell, how else am I going to justify $2G on panniers and farkles for the one trip per year I have the time to do!
Don't underestimate the benefits to your sanity!
bikeless no longer! welcome home, 2011 KTM 990 Adventure!