Here's why you don't buy imitation cologne:
1. For a guy, 3oz of cologne is a 1-years+ supply. If you are using more, then you are metrosexual and have already allocated more money to your 'pretty' budget. Seriously.. you wanna have a hint of the cologne smell and not make everyone on the bus pass out.
2. Imitation cologne usually does not last as long and is watered down. On average, it goes 'peppery' faster. If you don't believe me, ask Google.
3. If you have a girl over, and she uses your bathroom, she WILL see your fake cologne. Then, no matter if she liked your smell or not, you will continue to smell bad to her and her friends.
4. If the cologne you want costs more than $50 for a year's supply, then chances are a girl won't recognize it. Colognes always smell better to girls that recognize it because then they can say (lying or not), "OH! I love CK One.." or "Wow, you wear Romance by Ralph Lauren? I love Romance." Then, you have 5 more minutes with the girl to discuss how you bought it on a whim cause' another girl recommended it.
5. If you are buying it just because you like the smell, see #1.*
*If you were already not convinced or I did not convince you, then you are metrosexual. I cannot give advice to metrosexuals. Consult a homo instead.