Potatoes in the cellar?

Martin Heidegger writes that "Works of art are shipped like coal from the Ruhr and logs from the Black Forest. During the First World War Holderlin's hymns were packed in the soldier's knapsack together with cleaning gear. Beethoven's quartets lie in the storerooms of the publishing house like potatoes in a cellar." I must admit to having stacks of quartets (not just Beethoven's) in my cellar!