A. Well, at first they can be restored by an expert scribe. Letters fade and crack, but they can be repaired. Sometimes whole sections of parchment can be replaced. But you are right, there comes a time when they can become far beyond repair and need to be ‘retired’ – respectfully. Sometimes they are kept to dance with on Simchat Torah, even though they can no longer be read from. Many communities bury Torahs once they are no longer usable, together with worn-out books and prayer shawls. Other communities built special storage rooms called a “Geniza” where these holy ritual objects would be placed. The main idea is that it be done with respect and honor.