• I can do things with maps and minis that would be difficult or impossible at a physical table. Things like blocking areas from view, or using large maps.
• I can keep records of each game session. Chat logs, live recordings, screenshots.
• Recordkeeping can be automated. Things like tracking injuries, ongoing effects, and inventory can be given to the software.
• Because the game isn't tied to a physical location, we have the option of recruiting players from anywhere.
• I don't get to use my dice. I have Gamescience polys, custom Shadowrun d6s, even two of those d20s that light up when you roll a 20. Technically, I could roll them anyway, but no one else would see them.
• Technical issues can get in the way. If someone in the group can't run the VTT software on their computer, we have to put things on hold while we try to find a compatible program. If someone can't get online, they can't play.
• There's a learning curve to all VTTs. Some are easier than others, but might not have as many features.