seller is at fault for scamming, but the buyer should do more homework and research about market price before walking into a shop

another reason why people got scammed is because the seller can see their buyer not confidence in their purchase or cant make up their mind what they want and giving the seller an impression of "i want a camera that take pictures but i think you can recommend me a specs since you deal with camera stuff" and thus get scammed

take it as an expensive lesson and do more research next time

and also nikon 50mm is not exactly a good lens, should have pair with 35mm because of its image quality and the price offered

many recommend 50mm because other camera maker product better 50mm compare to 35mm