I have a similar issue where I want to store configs for as long as possible, but when it comes time to free up disk space, the search for configs takes an eternity (not finishing in the space of an eight hour shift). To minimize future headaches, I have my configs going to my filesystem in a folder with that folder's name containing current date (${Date}). In the future when I have to delete old configs, I won't do any searching, just sorting by name.
Obviously if you're trying to save disk space, you could zip the files you have if you aren't looking to delete. You would still benefit from having configs stored by date.
