Question for the older folks- did you ditch vinyl when cd arrived?

I sure did. Got rid of so many I wish I hadn't, but still have a good many vintage LP's from the 70's. 

No. I didn't adopt CD's until ~10 years after arrival - when it became more difficult to find LPs.  Then I bought used LPs and CDs - played both.

I couldn’t wait to ditch vinyl even as a college student in the mid seventies.  I had my fill of warped crappy noisy LPs.

  The problem was when CDs came out I was starting medical school and had no disposable income.  I had a cassette deck but prerecorded cassettes were an awful alternative.  My hand was forced when a house flood my intern year trashed my LPs.  LPs had disappeared from record stores.I bought a CDP and immediately was entranced by the silent backgrounds and enhanced dynamic range.  The problem was that CDs were expensive.  There were no budget labels, No streaming.  No second hand shops selling either LPs or CDs.  I could afford very few CDs and spent several years listening to the radio as my primary source 

I doubled down on vinyl - though I did buy CDs when a favorite artist didn't come out in vinyl. So, for awhile (late 80's into the 2000's), we were in a vinyl desert, and to hear beloved artists new work, I had to get the CD.  I do have over a thousand CDs - but many times that in vinyl. I try to be open to the music in whatever format it comes. I have my system able to competently play all formats. But I have prioritized making my vinyl playback the way I want it. 

David

I kept my LPs and never touched a CD until my wife bought me a CD player for Christmas in 1985. I had left my Garrard in the UK on moving to Canada and was making do with a Radio Shack turntable (I know, I should be shot). So soon enough, CD became my dominant source and I embarked on buying ever better CD and SACD players. Then about twenty years ago, my brother offered me all his LPs, and a colleague died who had a large collection of cassical and world music on LP. So I bought a Planar 3 and a Shure V15xMR. Things went downhill from there!

Like @mahler123 above, I used the radio a great deal as a student. BBC Radio 3 for classical was truly good in those days, and Capital Radio for pop. I understand that these days the former has been castrated and Capital is gone. Once I had a CD player and was earning I would make a trip to Halifax (NS) every other Saturday when not on call and buy about a dozen CDs from Sam the Record Man, where there was a very friendly enabler on the the third (classical) floor. This was pre-internet. These days I buy pretty much everything used from discogs, and always on vinyl unless only available on CD.