Owning a allows for daily meditation on these themes, not just during Purim. Many people study one chapter per day or focus on the verses of the "Al Hanisim" prayer added on Purim.
The Megillah is read in synagogue and at home during Purim, usually in the evening and again the following morning. The reading is often accompanied by noise-making and merriment, as the congregation drowns out the name of Haman and celebrates the salvation of the Jewish people. the holy megillah pdf