I have bought a few of the “older” solids and have received three so far. They all look quite new. One of them, the rope from 1971, still has the perfume (brownish now) in them and the engraved heart has a tiny bit of traces (also brown) of perfume left. I guess the past owners must have taken good care of them, that's why they look so good.
I'm from Australia and as we are so far away from the US and the UK where most of the sellers are, it costs me quite a bit in shipping and have to wait a while for them to arrive!
I have also just bought the solid perfume book from amazon and some stands from jp corner (found them from the link here) and am waiting for them to arrive.