I do pretty much all of my DMing these days via Hangouts / Roll20. I grab a screenshot of the map, upload it, enable Fog of War and it's ready to go.
Except that 19 out of 20 products don't include a player version of the map. Which means secret doors, traps and the like are often marked on the map, which takes some exceptional use of FoW to keep those from being exposed too early, and in some circumstances, there is not much one can do to keep the secrets secret.
A few publishers (Purple Duck is one) do provide players maps for use in VTT sessions, which is awesome for folks like me.
Would player maps make running your game sessions easier?