If it has a white translucent 'incident metering blind' that can be slid over the metering cell (something I doubt) it is arguably worth keeping. But without some instructions/guidance to get you started incident metering can be tricky.
If it doesn't offer incident metering it will be of marginal value to you for the time being ... (possibly more value later). A meter that gives incident and reflected readings is potentially a worthwhile tool in many applications (but take advice before buying one).
The FA has a few 'tricks up its sleeve' - so it's useful to research these via Mir.com and Ken Rockwell's websites.