Vanilla sugar is expensive to buy at the best of times and you do not get much for your money. So why are you buying it. It is so easy to make you have two ingredients in effect sugar and vanilla pods. If you make it at home you get far more for your money. Its useful to have in the pantry and also to use in home made preserves.
I have covered this in quite some detail before and here is the link. So don't buy it make it and have pleasure in providing beautifully flavoured ingredients for use in your baking and in your preserving and also for passing onto friends and family as part of a Christmas hamper.
Here is my previous post
There are lots of posts going way back on all sorts of things.
Catch you later.