Grolsch bottles used to be like gold to us when we bottled. They're so much easier to deal with. We changed the gaskets...hmm...oh...never...yeah, I think never. At least very very rarely. They last a good long time.
As far as color, green bottles suck, brown bottles suck, clear bottles REALLY suck. But the cool thing is that as homebrewers, we can control where our beer is stored. So keep it in the dark and don't let it get too hot and you can put your beer in whatever you want. Fact is, without proper storage, brown bottles don't really offer much protection against the harmful parts of light. Proper storage is the name of the game, and that's the part that commercial breweries have trouble controlling.