Bank of America maintains its Buy rating on Apple Inc. (NASDAQ:AAPL), citing high levels of uptake over the coming years as the Cupertino, California-based company upgrades its iPhone models and releases its Vision Pro, the new virtual reality headset. While Apple customers remain loyal to the iPhone — with its unique iOS operating system being the chief selling point among a generation of iPhone users — they may not embrace the Vision Pro just yet. According to a Bank of America survey,10% of respondents in the U.S. said they were planning on buying the Vision Pro, but felt it was too expensi…