You look amazing in this poncho and I love the entire outfit. If you don't enjoy it after having worn it -- then by all means let it go. But if you've changed your mind, I hope you'll wear it lots!
I purge anything I don't truly love. It bothers me to see stuff that I'm not wearing in my closet, and it bothers me even more to wear stuff I don't care for anymore.
I do keep things that I love but am not currently wearing, especially if I know that their time will come around.
Here's a really simple example I was thinking about today. I currently own three winter coats. A red wool knee length, a black and blue colour block pea coat, and a grey puffer.
Last year, I almost never wore the puffer. Maybe 10 times in the entire winter? I even went so far as to store it in our basement hooks because I wasn't reaching for it at all. The weather pretty much permitted wool coats all winter!
Well, roll around to this year. I wore my wool coat today for the first time -- literally -- since mid-December. I have worn that blasted puffer every day.
I love all three coats (well...not the puffer so much right now, but you get the idea!). If I had purged my puffer last year, I'd be in big trouble. But likewise, next year may be another "wool coat" winter.