and would getting a 50mm f1.8 for like 140 bucks be worth it? is it really better in low light conditions?
that lens has saved my life SO many times! I used it for theatre photography and sporting events in indoor gyms and ice halls. I now have the 50mm AFS 1.4 which is like $450 and the 85mm f/1.8. A exposure of 1/100th of a second, ISO 1250, and a f/stop of 1.8 means serious low-light work.
Those lenses are also excellent in every other aspect, they're sharper, smaller, lighter, and cheap. They allow you to learn aspects of photography a lot faster, allow you to utilize the available light, the list goes on. Highly recommend one!