Every time I hear a light aircraft, I look up and wonder....what type it is, what are the flight conditions like, where could they be going....and I think to myself, lucky bugger!
Equally when I hear that two wheeled dream machine hammering down the road at 2am giving it some, I am just waiting to hear the smash as he loses it on the corner. I don't find it particularly annoying though, each to their own, there is plenty of space for us all to fit in.
Actually on the subject of noise...yea sure you can hear a light aeroplane. But a lot of the time above a few thousand feet the noise level is really low. I think people just wind themselves up about noise and make it seem worse than it actually is.