After wandering around the NAIMs the one motorcycle wish I had was RACER5. I had a nice chat with the people running the stand and after seeing that, a weekend in the summer getting my race license would be the most awesome May/June or early July weekend birthday present I could think of.
They run the three day course at Grand Bend Motorplex on little Hondas. You get lots of track time and classroom support. By the end of the course you get your racing license. Watching how they set up the bikes would also be handy as I'd eventually like to build my own track bike.
They also offer kit rentals, so I could get a good idea of what size I'd need as well as how racing gear fits.
The race focus would allow me to explore riding dynamics at an advanced level on a closed track. I'd be able to bring that knowledge back to my riding on the road. As a form of insurance, it might well save me a lot of grief.
It's a big ask, but it would make one hell of a birthday present. I wonder if any other bikers I know would be interested.