I have several GE's, Weston's and others that I cannot recall off the top of head else, in box, last I checked a little of year ago they were all working and can be found on various sites for less than $20, most of mine came bundled with camera I bought. Finding a pretty good used light meter will cost much.
Respectfully, the GEs, Westons and the other 100s if not 1000s of selenium cell meters manufactured until about 1970) go on working, in a way, until one day, boom!! they're gone. Or like my beloved Weston Master Vs, they slowly but steadily decline to under- until one day they kick the bucket, and that's it. Shelf queens.
Even at their best they wee pretty much good only for so-called "average" conditions, accurate on sunny days but that's about it. They came with detailed instructions on how to use the adjustable calculator dial to try to work out how to vary exposures (+ or -) to the conditions. This never worked for me - I failed maths through school. Or is it rather the Law Of Gravity, best explained as Westons can annoy and frustrate you until you throw them to the ground, and then they stop working.
Another key point. Until fairly recently, Westons could be repaired, but now, no. The era has passed.
I still have a Weston V and a venerable III, a family heirloom bought new by a photographer uncle in, I think, 1950, working. Sort of. With negative films I add from half to a full stop over, as insurance.
Hand-held meters are no longer the bee's knees as they once were. Gossens are now cheap if you look in the right places. Like Ebay. Also charity shops, where they are overpriced and gather dust or flogged off for a few dollars and fly out the door, to end up on, yup, Ebay.
But they are fun to use. What is more enjoyable than loading a Rolleicord Vb with Tri-X or HP5 or XP2 and venturing out with a Weston around your neck. Most definitely no getting away from that. Long may it be so.
All this said, we appear to have drifted off-topic here. We should be taking MF cameras and not meters. But then one leads us to the other anyway, for the most part. So.