You also need to decide if mobile matters, because it surely will soon if you don't think it does now. Airprint/MOPRIA and WiFi Direct are the future, people are using PC/Mac way less than before and that is not going to change. Be careful if looking into this though. Lot's of devices include Airprint, but often omit MOPRIA without an addon. And they are the same thing, Airprint is just Apple using mDNS and IPP to print, MOPRIA is the Android version of exactly the same thing, just Open source. If you pick a device with one over the other it will cause problems, because neither is a minority, there are vast amounts of both.
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