I am not knowledgeable person on the industry of wine, but I would assume that it is as the same as anything else liquid, New tastes better than old. I know it does when talking about milk!!!
I myself do not partake of much old liquid if I know it. That is why I always go for the freshest and newest!!
I believe this is the same for Wine!
I know if I have a choice between the two I will always pick New!
This is the reasoning I believe that there is a New Wine from God that is to partaken in his fellowship. This new Spirit of God is the intent of God! For the Holy Spirit is the only one that knows the intent of God!. God has given us all the NEW SPIRIT to become with God to know his Will!
Why do we continue to drink the OLD stuff?
The Eternal Purpose 