It's better to make objects useful. For example, people want to dig for the Grail, so let them dig, even if it takes 111 turns. If you don't place it in a Tower or a Conflux, it's not very effective anyway (not overpowered). And so on, the fewer restrictions, the better, in my opinion.
I completely agree with that, but we're discussing the current rules here. If they remove the restriction on the Grail, which would be great in itself, it would naturally make sense to bring back the obelisks. But right now... And the same goes for other useless objects. Either make them useful, i.e., remove the restrictions, or remove them from the map. What's the point of an intermediate option – the object exists, but you can't use it?
