I like the new Antiquities system, even if I'm not hardcore farming for mythic item leads. However, I find it a huge pain in the backside to actually go out and scry the leads that I do have because if I don't do them right away, I have to travel from area to area and look at my list of scryable leads to in order to find the particular lead that I DO want to scry. This, combined with the fact that some leads simply expire after a certain amount of time gives me a strong disincentive to scry, especially when you factor in the usual "unusually long loading screens."
As a suggestion, it would really be nice to be able to pull up a universal menu that shows you all the leads you currently have available for scrying, and then you can scry those leads wherever you stand in Tamriel. Once completed, it will then show you what region of tamriel the treasure is buried. A system like this would make the scrying system more user-friendly IMO, and I would do much more of it.