I too am in the "late 60's" bunch of riders that have been on bikes for almost 50 years and now thinking that it is time to give them up. A friend that is also my age just sold his last bike. He rode it only 400 miles the past year.
I'm 66. I think I am getting too old to horse around larger bikes like the GS or RT. Right now I'm having much more fun on my "little" Triumph Bonneville . . . especially for afternoon rides in the country.
2015 R nineT
2014 Triumph Scrambler
2015 Porsche Cayman