I have an 08 America (25K miles) and a 09 Tiger that I have 19K miles on. I Got the Tiger thinking it would be better for longer rides. But I am still tired at the end of the day. Not much difference from the America. The Tiger is quick...I have 4K RPMs that I dont use on the Tiger and are for sale if we can figure how to ship them.
The Tiger is taller and I had to have the seat shaved a little on the front so I could flat foot it. That is no biggie but buffeting is something I am still working on. There are options on other sites.
I am keeping them both.
By the way, on the Tiger when you pull out of the rest stop in say 2nd gear and go whoop, whooop, WHOOOOOOOP you will be going precicely 119 MPH according to the Garmin. That is the only place I use it.
I am 68, I enjoy my Tiger also