The biggest difference is the fact that the Platinum set has 50mm drivers, it may not seem like it would make that much of a difference, but the sound quality and range of what you will hear will be much better than the Gold. Also depending on your personal ear size, the 50mm drivers will have a slightly larger housing and cup size, so they are potentially more comfortable. The other half of the equation does seem to be that the Platinum has better ANC technology, with several different modes depending on where you are and what you would need to be blocking. And a small third part is that if the Platinum are sporting real leather coverings, the price increases slightly as well. They may stand out a bit more, but personally the Platinum are a much better looking set of headphones anyway, so you'll be sure to look as good as what you hear.