Here's a couple of useful all-purpose questions you can keep in mind when it comes to ANY piece of gear in this game:

Q: I worked hard for [piece of equipment X]. Will [piece of equipment X] become obsolete someday?

A: Yes. Yes it will. Having it, though, may well make it easier to obtain [better piece of equipment Y].

Q: Is it a total waste of time to get [piece of equipment X] when I can just wait and pick up [better piece of equipment Y] later?

A: That depends entirely on what you consider to be a waste of time. While it was still best-in-slot, you were king of the world. Was that a waste? Maybe yes, maybe no. It's up to you to decide.