It seems that people with several versions of the same works are interested of only those few works and can buy 10-100 versions of them. I am interested of basically every work ever composed operettas excluded. I prefer exploring hundreds of obscure composers instead of buying the same few well-known Symphomies and Piano Concertos over and over again.
I have only one version on Walton's 1st Symphony but I have also dedicated discs of such "obscure" composers as:
Tarquinio Merula, William Lawes, Caspar Kittel, Johann Adolf Hasse, Johann Friedrich Fasch, Michel-Richard Delalande, Louis-Nicolas Clérambault, Nikolaus Bruhns, John Blow, Alfonso X, Orazio Benevolo, Joseph Bodin de Boismortier, Antonio Caldara, Giacomo Carissimi, Francesco Onofrio Manfredini, Paolo Lorenzani, Leopold Hofmann, Francesco Geminiani, Georg Muffat, Johannes Schenck, Johann Baptist Vanhal, Francesco Maria Veracini, Sylvius Leopold Weiss, Johann Rosenmüller, Antonio Rosetti, Monsieur de Sainte Colombe, Sergey Ivanovich Taneyev, Barbara Strozzi, Harold Truscott, Philipp Wolfrum, Matthias Weckmann, Michael Haydn, Rued Langgaard, Jacques Paisible, Jacques-Martin Hotteterre, Jean-Nicolas Geoffroy, Joseph-Guy Ropartz, Kôscak Yamada, Michael Praetorius, Pierre de La Rue, Frederic Mompou, Christoph Graupner, and of course Carl Ditters von Dittersdorf.
At the same time I don't have a single disc of the following well-known composers:
Bartók, Bruckner, Ives, Janácek, Liszt, Lutoslawski, Mahler, Messiaen, Paganini, Penderecki, Poulenc, Respighi, Schoenberg, Johann Strauss jr & sr, Telemann, Vaughan Williams, Verdi, Weber & Webern.