I paid $1300 for a Pulsar C50 with 1928x1088 resolution. It is not as good as any of my PARD NV scopes for night shooting. The C50 has become my primary daytime starling/crow scope because of it's shortcomings under ir illumination. The PARD Nightstalker 4k is a great NV scope at half the price. It sees heavy night use on a powder burner.Question for those that have owned cheaper Night Vision not thermal , in the past . IF i own a typical country back yard 100 feet wide X 150 deep including the house . What is the real difference in cheap VS 1K or more ?