I understand what you are saying - it just seems so wrong. Should be a way to buy the cheap VDI connector so I can use my "free" software.
Actually, it's designed the way it is so that the software isn't actually free - Line 6 provides software piracy protection via the hardware. Anybody can go ahead and download the 'free' software. But you can't use it unless you buy a Line 6 hardware device - either a Pod processor (relatively expensive, so they're able to include the software) or the Workbench hardware interface which is more expensive than it need be. Why? To pay for the software development.