They can be a way to go. I am a plastic man not a glass man. But with that said, there are uses for glass. OTOH the glass v plastic is a bit over blown debate (as much of the debates on these things tend to be)...
Anyhow, yeah, just go with plastic if you are comfortable with it. Some people claim off flavors, so that would be a reason for glass, but glass breaks, a reason for plastic, but plastic is opaque, a reason for glass, but plastic is lighter to move, so plastic, but glass is more resistant to oxygen/preasure changes, so glass, But plastic isn't all the sucesptable to oxygen in through the plastic, and cheaper (and on and on it goes)...
USE what you feel good about. Experiement to see if you are missing something, but don't sweat it all. And yeah, you can dry hop right into the bucket if you want.