The "battery issue" is only such for nay-saying armchair experts, but is certainly not an important factor for choosing a body in real life.

Except that it can, and often does, compromise the usefulness and function of an old camera whose metering accuracy can be iffy, at best. The workarounds involve a degree of wishful thinking and inconvenience that really defeats their purpose. If you want to shoot a relic and to skip futzing around the Wein cells, hearing aid batteries and converters that don't always fit, just get a handheld meter. That's the best "real life" suggestion--unless, of course, sitting in your armchair watching a meter needle twitch, matters more.