OK, maybe someone can explain. Have I been doing it wrong?<p>I have minimal Windows VMs built on VMWare to test with everything from ie6 to ie9 and a Windows 8 VM to test ie10. Same for Windows Safari and Firefox. With VMWare's workstation software you, effectively, get one browser per tab (well, one vm per tab) and testing is dead simple.<p>This wasn't so hard to setup at all. I can even remote-desktop into the machine hosting the VM's and test from another machine. The only cost were the Windows licenses, but we use Windows already, so that wasn't too bad.<p>Why would one want to pay to use these services, particularly when, if I understand it correctly, they offer static images of each browser as opposed to a real-time interaction?