OlinBost wrote:
I have the following lenses in my kit: 18-55, 28-80, 55-200, 70-300. Is there a great need or benefit to have a 50mm prime lens with F/1.8 for low light?
A prime lens offers better quality than a zoom, is lighter and faster, and will give better shallow depth of field effects for portraiture etc. Not as versatile, but there you go.