The reason many GMs hardly use some of the features of Roll20 is that it is often simply used as a Dice Roller and as a Map Maker because those are probably its most useful features, honestly. The Dice Rolling feature is fast and fair, and the Map Making is easy to use and can pull tokens and such on a whim, and even then many RPGs don't even use maps during combat, so it is reserved when the battlefield needs better visualization. For my Heavy Gear Second Edition campaign, I actually edit the vehicle images out of the Core Rulebook and put them on the board which is extremely useful. Many people use Skype because people can be contacted very easily even when they aren't in the game yet, and Roll20's video and voice can be dodgy at times, though it is generally not bad and it is always improving, but right now Skype is a bit more reliable if more resource intensive. Also, files can be sent through Skype which is very useful. Character Sheets are used much more often in other games, but if the game doesn't yet have its own custom sheet than either someone has to make a sheet on Roll20, which can only be done if you're a Mentor, or it has to be done on Excel or on paper. I use an Excel character sheet for my Heavy Gear Second Edition campaign because there currently is no custom sheet for it and I can't make one. Same thing for systems like Tri-Stat DX and, I believe, systems like Eclipse Phase, Mouse guard, etc also probably don't. Also, some people prefer physical copies for whatever reason. And not everyone uses a log for their campaign, and if they do it is sometimes easier to use other programs simply because they can be used and edited outside of the campaign very easily. Macros, also, are only useful for campaigns with a lot of different dice rolls that you will be using again and again, such as DnD 4E, but many other games do not really need macros, such as Dungeon World, or there is no way for a macro to encompass all of the possible modifiers so it would be pointless to roll a macro and then add and subtract a bunch of modifiers anyway, such as in games like Heavy Gear Second Edition where there are probably a dozen things that can change at any time for the same roll, and no one is going to make 50 macros for each weapon at each range in every condition for every vehicle. Really, the usefulness of many of the features on Roll20 is dependent on the campaign. If I hosted Fiasco on Roll20, the only really useful features would be Dice Rolling and maybe the Logs, and maybe visual representations of the black and white dice on the board. Skype, though, would still be favorable because I can have their faces on another screen nice and big which is pretty useful in a heavy roleplay like Fiasco, and it is comfortable and reliable. I could also probably just send any of the playsets over Skype in PDF format because that would be easier honestly. I have no experience with WoD, but if all of the WoD campaigns that you join don't use many of the features, it is probably because many of the features are not useful for WoD. If you want a lot of macroing and logs and scripts and rolled tables, you'd most likely find that in a DnD 4E or 5E game. But I have no idea why you would play a system just because it uses stuff on Roll20. Out of all campaigns I am in or have been in, which is like 6 or 7, none of them use the Roll20 features to the extent that you envision. Perhaps there are some groups that would benefit from using the tools to a greater extent, but we are here to roleplay, and if a feature is unecessary or not particularly useful, we just won't use it.
