To add , shooting with a prime lens is much more challenging and satisfying than shooting with zoom lenses. Try shooting landscapes with a 50mm prime and you'll know . Also like rudresh said , primes are usually sharper , cheaper and lighter than similar zoom lenses because they have very little of the complicated mechanicals/electronics that zoom lenses have. The 50mm f/1.8 Nikkor is widely considered as one of the best primes ever made and can be picked up for a low as 5K. But you need to use a lot of grey matter to use it in different situations and it forces you to think when composing your shoot. Unlike being a "zoom-zombie"