Some may find this controversial, but I don't care. My job as a fragrance critic is to be a door to new perspectives; and not a mirror of every single person's own view. So I'll be honest.
So, you're new to fragrances and you just logged on this site to see what it's about.
What do you do?
First, don't buy cheapies. Don't waste your money on a flurry of $15 to $40 fragrances you got just because they were on sale. In the end, once you discover that there are better fragrances out there, you will probably regret having 10 or 15 bottles of "cheapies".
Next, I suggest you start right away at higher end fragrances. There's no point in trying low-end cheap fragrances first because once you try fragrances that use better quality ingredients, the cheapies are going to be an obsolete.
Go on websites like surrendertochance.com and try some niche out. And THEN return back to the cheap fragrances to see which ones you'll like.
Some you'll go back to still loving and others you'll be totally disappointed by once you find there are better options in a higher price range. Better to get a clearer vision of everything before you commit yourself to only 1 range of fragrances.
Sometimes you will find that once your standards were raised by more expensive ones, that you may still end up liking a few cheapies. If you try $200 fragrances and you still like the low-end designers, then you know they are for you. But many times, people simply start with lower end fragrances and grow disappointed in them once they realize there's better stuff out there.
Honestly, if you really love a few cheapies and your favorite fragrance of all time (after trying many of all price ranges) is $40, then I totally respect that. But most of the love for cheapies on here isn't genuine.
Not saying fragrances like The Dreamer, Body Kouros or Rochas Man are bad, but probably 90% of the reason these are bought is because paying $30 is much less intimidating than paying $90. But with all the cheapies some people buy (including myself when I first started) they could have bought 1 or 2 expensive fragrances that they actually love.
Lastly, buying 6 $30 fragrances you like because they were cheap is bad because you simply won't use all of them. Buying a $150 fragrance is really no more expensive than buying many cheapies because you won't use them up.
If you live in a developed country, under a roof, you eat regularly, you have electricity and internet, you probably can find the money to afford something you really like, whether it's cheap or expensive. A fragrance lasts a really long time, for years, and to spend a lot of money on that will pay off if you love fragrances, but what's the real waste of money is buying a bunch of stuff you won't even use most of and realize you didn't need it anyway.
Quality > Quantity
And yes, on a general scale, $70+ fragrances are generally better than <$45 fragrances. It's not politically correct to grade an art form in monetary terms, but the truth is, generally, you do get what you pay for much of the time.