nan your vinyl albums are worth a great deal, there is a cult of old vinyl fans out there who would love your collection, check out ebay and the web for retail sellers, and buyers. Let me know if you wish to sell your collection. I am in touch with several buyers who, I'm sure would take your collection.
the quality of music reproduction by CD is not better. It starts with how the microphones and sound engineers set up the basic recording. When digital came on the scene, it gave the sound engineers music loops from synthetic (Moog) sources, especially in the drum and bass area where 80% of the sound energy occupies. If you cannot tell the difference between a drummer in the material you are listening to is human or a sound loop it probably doesn't make any difference to you. Currently repressing are being made on heavier vinyl of older recordings from the original soundtracks which were made on old AMPEX 2 channel magnetic recordings in both AM and FM. These were done before Dolby compression was invented and have a very different "flavor" than later techniques. Also when recorded and played back there is a considerable difference in the ringing caused by binary compression in the digital and analog filters used in the conversion. This causes an edgy sound from the digital sources and make some people uncomfortable. This is caused by the odd harmonics in the sound source, which is absent in the analog versions especially when replayed on amps and preamps using tubes or non linear transistors.
the public has been sold a bill of goods, mainly because the kakka they call music nowdays lets them get away with it. also the surround systems they use for movie playback only needs the sound separation of a plane going over head, and the voice reproduction of humans in the center stage which fills up 90% of the material content.
to hear the best difference you need a system capable of reproducing concert sound levels around 110 db with no distortion, in a fairly large living room or theatre type room.