There is is a massive difference between Fashion and Style. And I cannot press this enough!
Fashion is something that is current, trendy but sadly something that will become outdated and fairly quickly at that.
With anything trendy I recommend adding a very few items just for the fun of being current.
However if you really love it and find a way to make it yours, then by all means rock it girl!
Style however is something that never fades, and if you manage to get your hands on those ever so important key pieces than you know they will last long, be versatile and something you can build an entire look from.