The $3,500 price tag on these is insane. The MW with more features was way cheaper brand new before bring discontinued.
Anyways, I still believe that the Road King II is the best Rectifier ever made.
The plugin is better IMO and always has been. From day one I prefered the plugin version. With that said, I believe the stock amp is based on the old SLO100 and the plugin is based on the latest SLO100 release.