Would you wear something you personally don't like because others love it on you? Would you abandon a cologne you personally love, but others find horrible?
Just a thought.
For me, my priority for buying a full bottle of any fragrance would be to make sure it is something that I would use because fragrances are expensive.
If it's a situational fragrance that I probably will only wear a few times a year, there's absolutely no reason for me to own a full bottle.
In the end, I wear only what I like and if I didn't like the fragrance a lot, I wouldn't buy it, but other people's perceptions do matter a good degree (though they are hardly the main factor).
Generally its for me. If people like it thats a added bonus.. Although for buying sounds terrible but the only cologne I can think of I would buy just for the compliments is.... the cliche aventus. Im tempted on getting a big bottle of that quite a bit just beacuse it gets so many compliments even though its just OK for me.
The deciding factor for me 1st and foremost is *does it smell good to me and on me". I 1st try it on paper. If I like it, I will do a skin test. I like to try it out at least 3 times before I purchase a new bottle. Some frags have a tendency to smell good at 1st, but can be very ugly in the later hours. I prefer a perfume that develops wonderfully with my body chemistry and stays that way till I wash it off. So, basically I buy perfume just for me. I wear my perfume just for me. I love to smell myself lol. I also love when I smell perfume/cologne on someone else who has chosen wisely. The lady I work with at my PT job is allergic to perfume. The way I get around it is to cut down the amount of sprays or just wear the lotion for my perfume of choice. I have to be scented in some way lol. If I'm out and I don't know you and you don't like my perfume, oh well. One of us can move. I would not wear a perfume that I didn't love on myself. I love getting compliments, but that's not why I wear perfume.
Usually, if I simply like the fragrance and I continue liking it after different testings, getting additional info on this, also, if the price and/or the price quality ratio are an additional (but not mandatory) positive argument, the fragrance eventually lands on my wish list and either simultaneously or sometime later, on my shopping list.