Wear it then!
The thing about "party" outfits, especially the Xmassy ones, is that you really can only wear them at Xmas, NYE or other big parties. They are not clothes that you can repurpose very easily. Great if you are into disposable fashiong or can afford "wear once then donate" but most people want something that will last and be used again.
Far better a dress that makes you look and feel good that you can wear many different ways depending on the accessories. Better for your purse and the environment too.
If you love it that much, I would buy it in all the colours if you can afford it, you will never need to buy a new dress again!