Indian Cents: Red or Red Brown?

Wheelerbandini

I have an MS 64 1902 Indian cent in a PCGS holder. I had been thinking about trading up to a Red. More than one coin dealer has warned me about doing that. They tell me that the Red will turn Red Brown over time. The coin I have is gorgeous - hand picked by Rick Snow and Photo Sealed as well. I have seen quite a few Reds that have become Red Browns. Your thoughts?

WB