I still have a few albums from when I was a teenager that never went on CD (Remember "The Secret Policeman's Balls")? My wife has a ton she wants to get onto her iPod.
And to get them onto digital I got a USB turntable. Using the Audacity software to convert the output to .mp3s.
I've just done a couple albums so far - I was pretty anal about keeping them clean and free of scratches while putting them on good quality cassettes (they've been played two to four times at most) - and I have to say I prefer the sound of CDs. The occasional pops and pickup hum that many people/hipsters find endearing, I find annoying and distracting from the music. I used to be pretty good at nailing tracks but it's not like riding a bicycle, I need to relearn it (although I'm breaking up the tracks fine using the software).
I was surprised at how the quality of the turntables don't seem to match the quality of 35 years ago. My previous turntable was a direct drive Technics that was built from solid aluminum castings; Shure cartridge and I can't remember who made the needle. I bought a highly rated Audio-Technica which is more than serviceable and produces nice sound, but I definitely prefer what comes straight from a CD, iTunes or Amazon.
I know my son will be scandalized at this post but I grew up in the age of (great) LPs and despite not having the same album artwork, I don't miss LPs at all.