No. Not planning to buy a device with USB C. Maybe at the end of the year if my laptop dies or if Android phone finally sways me away from Apple. Definitely need a PSU though.
I have no plans for adopting usb type-c unless forced to by the peripherals that I use on a daily basis or usb connectors go the way of ps/2, serial, parallels, etc.
There's seems to be an unfortunate lack of USB Type-C peripherals for PC that can take advantage of it, or maybe I'm just not finding anything I need that can use it yet.
Not soon. For now USB 3.1 has been plenty fast enough for me. Only thing I really use USB for, besides kb/m, is thumb drives, and they don't take very long to fill up anyway.
Side note: I really could use the PSU right now, the one in my main system has shit the bed and I have to wait at least another week and 1/2 before I'll be able to get one.