In short ... if it works for you, don't change it.
There are reasons for a change when ...
... you get a new camera that is not supported by the actual version of LR ...
the detour with the conversion into a DNG is often too cumbersome.
... you get a new computer with a new OS (or you just happen to upgrade the OS).
Eventually the old version of LR does not support your new OS, so an update might
then be the way to go.
... you always missed something in the version of LR that you are working with ...
and finally Adode listened and implemented it into the new version.
Besides this, there might be other reasons, nevertheless, if the workflow
you have now is sufficient for you, why change it?
Just my thoughts ... Rainer
There are reasons for a change when ...
... you get a new camera that is not supported by the actual version of LR ...
the detour with the conversion into a DNG is often too cumbersome.
... you get a new computer with a new OS (or you just happen to upgrade the OS).
Eventually the old version of LR does not support your new OS, so an update might
then be the way to go.
... you always missed something in the version of LR that you are working with ...
and finally Adode listened and implemented it into the new version.
Besides this, there might be other reasons, nevertheless, if the workflow
you have now is sufficient for you, why change it?
Just my thoughts ... Rainer