[Arran]

If the set was restored properly, and by properly I mean new caps, drifted resistors, and rotted wiring replaced, then there is no reason why the set could not be played one, or even several hours per week, if you so desire. If someone did a quick and dirty job of J hooking some new new parts in, just enough to get it working, then I would hesitate to do this, new components should be connected to the terminals with new solder. Old radios don't get dusty or corroded any worse then anything else, in a controlled environment there shouldn't be many problems.
The issue I have is that most of my radios are not really played enough, even after I restore them, if I only had a handful of sets this would be simple, but what I need is some sort of rotation program.
Regards
Arran