While I am not a great fan of Custom Shop as an eCommerce application I did come to realise some of its advantages when setting up my new DAW. One install and running "Restore my gear" takes care of what would have otherwise been several individual installations.
Another maligned application is Native Instruments "Service Centre" but showed its worth in insuring I had all the latest patches. Doing the same thing with Toontrack involved building a list and ticking off each update as it was installed.