The 4 buck body spray is a product which is lighter then perfume, generally less expensive and doubles as a deodorant. A scented liquid, made up of mostly just alcohol, water and the scent. Body spray is used to scent your whole body lightly and alot of girls use it on their clothes and hair. The scent is made up and mixed from all type of ingredient to turn into a scent. This doesn’t last long and just mask an odor temporarily.

Perfume is expensive because it is concentrated with essential oils (natural pure oils from plants or roses) water and alcohol. This will last longer and are often hard to obtain at times. Also create a natural beautiful scented aroma.

body spray is just a spray that has hardly a smell that you need lots of it, to smell it, and it can go all over your body.
perfume is something that has a strong smell, and you only need to wear it on your neck or on your wrists. and not alot of it.

Perfume and body spray are the same thing.

Except perfume is widely advertised with a celebrity, and body spray is not.

Perfume is much stronger, Only dab it behind ears and on wrists. Body spray is much lighter scented and you have to re-apply all day if you want to smell like it.
Perfume also uses higher quality ingredients, for a more mature sexy scent.
Generally the older you get the more youi gravitate to perfume.

perfume is for your neck and wrists and because it comes in brand say a celebrity makes a perfume its gonna be expensive because a celebrity has their name on that item body spray is a simple lush smelling fragnace that you spray on your clothes