I am still using a Weston Master II from around the late 1950's. It still seems to be working when checked on the Kyoritsu and the good old "1/film speed = seconds at f 16" guide line in daylight. I even bought a Weston Master V to be sent out for repair to go along with it. I like them. They do not require batteries, even if they go not go down very far in low light. If I really want take a photograph in moonlight, I will drag out the Gossen Luna-Six or something equivalent.
If you keep the Weston meter in a dry environment, it should last a very long time and give you very good service, except for the extreme low light level thing. Low light level; OK. Extreme low light level; no.
I still believe in older technology. Just because something has an excessive accumulation of years does not mean that it is obsolete. (I hope that statement applies to me also.)