+1
Excellent points there. Not only that, but I have a huge pet peeve with some sellers who think that because it's an (1) one-shot, hence it's a #1 or a (2) last issue of the series, that those things put a higher premium on the issue. Condition, scarcity, artist, specific appearances, or content matter all should be what we look at to determine value, not the issue numbering.
That said, I hope Mummy's Ring prices stay low until I find a copy I am happy with saw two copies last weekend, both missing CF's....