Hey, if it works for ya, then it works for ya. I know a (admittedly hipster) writer that still uses Ye Olde Fashioned typewriters for his work. Some poor bastard has to OCR it when he's done, but it's his "thing".
For sure I have read of many screenwriters, novelists and short story writers who still use manual or electric typewriters. I think some of it comes down to whether you prefer to write and re-write in your head (and then bang out the results on a typewriter), or if you prefer to keep revising and reiterating on screen (then word processing's the thing).
Although my professors encouraged doing outlines and such before actually typing up a paper, most of my later high school and then college time was spent on a Brother and later Smith-Corona (the snap-in square cartridges seemed so high-tech
) typewriters, with the "OMG, it's due tomorrow!" juices driving me to type thoughts as fast as I could think them. I try very hard in my current trade media reporter job to get stories done as early as I can rather than wait for inspiration to hit me.