Shelton,
most musicians buy and collect large amounts of sheet music over the years, so you are not alone in that. One thing that you said that would concern me a bit was that you keep buying loads of (new) books that you dont even play. That seems to imply that you may be addicted to buying and spending money rather than the actual music itself. Could it be a case of comfort spending? You know, addicted to that pleasant feeling when we buy something new? The same feeling when unwrapping a present. Some people are addicted to that sensation in the same way that others are addicted to say chocolate.
Maybe you are just keen to build up a decent collection at the moment? No harm in that as it is nice to have a reference Library especially if you are a teacher.
I am exactly the same and have hundreds of piano music books in my collection. Luckily, a lot of them were bought from second-hand bookstores so they didn't cost too much money. I recently started to catalogue all my old Examination books/Progressive Pieces etc in the hope that I would be able to find pieces quickly whenever I needed them for a pupil. At last count I was up to 474 pieces catalogued and still have loads and loads of other things to do like Compendium books and Pop and Jazz stuff etc as well as a whole load of music in the shed.
Recently, I started playing the violin and I have already collected about 50 books. I was lucky here again though because I went to a local second-hand bookstore a couple of weeks ago and ended up buying 22 books for £20...what a bargain! I am slowly playing through all the books and also recording all the piano accompaniments so it has been money well spent.
I would say that at some time or another I have played about 95% of the music in my collection, even just having a go at sight reading a lot of the pieces. At first I thought I might have been a bit over the top with the violin books that I've been buying but I'm making good use of them and over the next few weeks/months hope to get through pretty much all of them.
Gae
P.S. The wonderful Violin books I got second-hand were:-
Hours of Pleasure for the Violin Book 1 (Augener)
A Collection of Graded Pieces for Violin and Pianoforte Grade 5 (AB)
Compositions & Arrangements for Violin & Pianoforte Minuet in G (Richard Jones) (AB)
Compositions & Arrangements for Violin & Pianoforte Adagio in B minor (Handel) (AB)
Nine short pieces for Violin & Piano (Reginald Redman) (Augener)
Violin Examinations Grade 1 Lists A & B 1955 (AB)
Violin Examinations Grade II Lists A & B 1955 (AB)
Violin Examinations Grade III Lists A & B 1957 & 1958 (AB)
Violin Examinations Grade II Lists A & B 1955 & 1956 (AB)
Violin Examinations Grade IV Lists A & B 1961 & 1962 (AB)
Miniature Pieces Violin and Piano Arthur Somervell (Berners Edition)
Fiddler's Choice Grade III (AB)
The Second Year Violin Method Piano Accompaniment (Eta Cohen)
Suzuki Violin School Violin Part Vol.1
Elementary Progressive Studies for Violin First Set (Herbert Kinsey) (AB)
Elementary Progressive Studies for Violin Third Set (Herbert Kinsey) (AB)
A Tune a Day Book Three
Old Fiddle Pieces (Ist position) A. Moffat
Violin Sight Reading Pieces Book I (AB)
Old Masters for Young Players Book II (A. Moffat)
Old Masters for Young Players Book III (A. Moffat)
Handel Violin Sonatas IV-VI Violin and Piano (Novello Edition)
Dont worry...I "cut & paste" the list!!!