Hmm... judging by the number of replies to this thread, I'd said there is a lot of untapped vassal potential!!!
Perhaps vassal has an (undeserved) reputation for high learning curve?
I promise the current version is quite user-friendly - but you have to take the leap and actually try a game. And it IS going to slow at first. But you're going to get much faster very quickly.
Also, not everyone on vassal is über-experienced. Some are, sure, but there is a lot to be learned from having your ass handed to you by the World Camp (for example). So don't be afraid to pick up games with "strangers". Could be you learn a trick or two, learn to appreciate a new build, get a new angle on an objective or whatnot.