Cheap perfumes = commercial/drugstore perfumes (perfumes you can find in Guardian/Watsons)
Expensive perfumes = designer perfumes (CK, JPG, YSL, etc.)
It matters, and they do make a difference.
Most cheap perfumes have a lateral scent. Meaning unlike expensive perfumes, they don't have top, middle and base notes (read here to find out more)
Is that bad?
Yea, it can be bad.
Having the same scent throughout the day can be offensive to the nose and nauseating to yourself and those around you.
Put it this way, the fact that the scent does not evolve for a long period of time, it soon becomes sickening. It may smell good for the first 15 minutes, but after an hour, your nose will not be able to take it.
Besides that, quite a number of cheap perfumes smell cheap. I mean, you want a fragrance that projects your identity and charisma, not one that makes you smell like Fabreeze or some toilet cleaner.
Any perfume that makes you smell like your commercial hair gel is also a bad perfume.
And the worst among all cheap perfumes; the aerosol spray fragrances.
They're bad for the nose, bad for your health, and bad for the environment.
Seriously, they're just plain bad.
Avoid at all cost!
unless your gf/bf gave them to you la. Then you should probably give them some face by using it to make your room smell nicer.
And if you are a girl, some cheap perfumes make you smell like a hooker
Seriously. no joke.
Designer perfumes may be expensive, but it's like an investment.
Bear in mind that I'm not referring to all cheap perfumes. I'm just referring to most of them