Milk powder

I have been on Enfalac A+ since birth, and mummy had stocked up supplies for close to 8 months, recently she requested a sample of Dumex Mamilgold, to prepare for my 1 year old feed. But Gu Ma (Dad's sister who dotes on me a lot and visit me every evening) said no no no change formula milk since Enfalac, and said that cost should not be a factor...looks like mummy must try to find cheaper Enfalac series..so the search will still be on, there are others like Friso, Gain, wow, so many choices !!!