And one other thought: lighter planes are more like kites. At that weight, you'd only launch in WX where you could launch a hot air balloon. Sour grapes? I guess so, because I know I'D LOVE TO HAVE ONE!!
I was surprised to find out from Hung's post that the Cessna 162 has a slightly higher wing-loading than a 152. So it'd be no more bouncy in windy conditions than our current models.