I did that 25 years ago and eventually learned to regret it. I used to have nothing but vinyl and terrible gear to play it on. I wasted no time converting to cassette thinking somehow that was better and then when CDs came out that was all the rage in my life. I thought I finally found nirvana and so I got rid of the vinyl thinking I would have no desire to ever go back.
My regret came when I came into the vintage audio hobby and to AK about 2 years ago. I quickly found myself longing to return to the vinyl.
What really drove it home for me was after finally getting some vinyl and what has been considered a half way decent TT and learning how to set a TT up with a decent cart and all I spun my first vinyl in 25+ years and it blew me away. I eventually gathered about 140 records and I learned how to clean my records from AK (including many other things) and sat down an cleaned them all over a weekend. I then started playing them one by one and discovered a great many of them had a different and pleasant sound to CDs. A few even sounded better than the CD version! I've been hooked ever since.
For me its all about the sonics. Some CDs sound thin and some don't. Some CDs are better then the vinyl countparts and some aren't. Also there are albums I have that never made it to CD. There are some records I have that I also have on CD and the vinyl sounds better to me. The reverse also holds true.
I happen to like cleaning records (and you don't have to clean them often really. If cleaned right and stored properly, you could get away with once a year or something). I also like the whole ritual of selecting a record, taking it out of the sleeve, putting it on the TT, running the carbon fiber brush over it, dipping the needle in the ME (cleaning item of choice), lining it up and dropping to the record to sit back and enjoy. I'm also one of those nerds that read liner notes and such.
I think part of it for me it just takes me back to a simpler time I lived in and the whole tactile feel of it all.
I'll never make the same mistake again that I did 25+ years ago.
That said for me, it's not about being strictly vinyl, no no. I have all sorts of mediums I enjoy for different reasonss and each has it's strengths and weaknesses. I have over 850 CDs (now about 175 vinyl albums), a few cassettes and a Squeezebox Touch (with each of my systems fitted with a dongle for the SBT to hook up to), the SBT being somewhat of a game changer as well.
I just enjoy music the way it's meant to be on whatever the best medium for said music is.