ESOTU Pre-OneTamriel: Hoard Survey Maps?

Merchant travels by horseback.
That windmill looks like a giant in disguise. Sancho, my lance and shield to the PTS.

Hmm…

Survey Reports now drop half as often from Crafting Writs, but rich nodes at survey sites now provide twice as many materials.

Should we start to hoard our survey maps until OneTamriel? I wonder if anyone has looked at this?