Recent events don't update on my iDevices

I don't want to use PhotoStream. But before PhotoStream was available, I did have my most recent iPhoto events synchronize to my iPhone and iPad via iTunes. These don't update though anymore. My iPhone is tiny (which is why I don't use PhotoStream) - but I still set up each device to the most recent Events. But the events I find are old.

What should I look at to see why this doesn't update?