Good Captain,
You are not alone... Just last night, I ran out for a gallon of milk, and drove side-streets the whole way to the grocery store and back. (Because it was trash night.) If I had been going to Kroger instead of Village Market, I probably would have seen those sets and grabbed them.
What's worse is actually paying money at estate sales, for sets you aren't even "that" into just because you hardly see anything cool at estates anymore, and you "hope" somebody on Audiokarma might want them!
I have the same problem with cars, as you know.
BTW, I really like that Zenith! I would be very tempted to put a SS Chromacolor2 chassis in there, since it seems I can't find a proper Danish-Modern Chromacolor2. (Like I need that either!)
If you get too overwhelmed, I could maybe free up some space in my rental's basement... Better than outdoors!