Once integrated with iCloud, iTunes becomes even more powerful because now the user can access his/her music, films, apps, books and more not just from one computer but they are available to all other devices on which the user is signed in.
Using iTunes Match user can store even that music on iCloud that has not been purchased from iTunes. With iCloud, iTunes automatically makes the new purchases available to all the devices, the moment the user makes a purchase. User can also access the past purchases through all the devices wirelessly without syncing.
User can purchase from any of the device but the new purchase will be instantly added to the iTunes library on the users Mac or PC.
Moreover iCloud remembers where the user paused while watching a movie or an audio book and resumes from the same spot when the user returns. If the user needs to go to a place with no internet access he/she can easily download a copy from iCloud and enjoy it locally.