Part of it's not influence exactly, but more like demographics. You're developing a Windows application. 0.1% of your users (or less) have this Lenovo adaptive

Part of it's not influence exactly, but more like demographics. You're developing a Windows application. 0.1% of your users (or less) have this Lenovo adaptive keys thing. How much time do you spend trying to support it? Zero, obviously, unless you have some sort of special bundling deal with Lenovo or something like that. You're developing a Mac application. 5% of your users have the touch bar. The number is growing every year. Users with lots of disposable income and a willingness to spend it are over-represented in that 5% to a large degree. How much time to do you spend trying to support it? Maybe some, and the chance that you will grows rapidly as its adoption grows.