I buy gear for the features and comfort. I don't plan on buying anything more than a second pair of headphones for paired listening. If something comes out that is more comfortable with the same sonic qualities, I may consider buying something again but don't plan on it. For source gear, I have a device that has all of the features I could want so the only reason I would buy something else if if I can get the same features for cheap enough that I can get a net gain on selling my old gear and buying the new gear, which is very, very unlikely.