Glass bottles vs BPA free plastic. Advantages? disadvantages?

Nowadays, as the plastic bottles are mostly BPA-free, they are consider safe to use for babies and all. So I guess it is really up to your personal preference as to which to choose. Some of my friends prefer glass bottles (mainly because these can withstand heat better, seemed more durable and easier to clean) but would bring plastic bottles (lighter and don't have to worry about breaking these) when going out. So most have both types. At home, when using glass bottles, they would handle the bottle for their babies. When they want to let their babies hold onto the bottle by themselves, they would switch to plastic bottles as those are lighter and will not break as easily.