Thanks lx200gps and loge23 for your feedback! Sounds like my worst fears will be confirmed once I board the Enchanted. I definitely won't be booking any more cruises on Enchanted, Dicovery and any other ships without Vines.
I've already been on Regal numerous times and enjoy their Vines Wine Bar. Yesterday I booked her for January, so I'll find out the impact of recent changes to the Princess plus package. I can live with paying the delta difference for some wines, but hope to find some still under $12.