VMware Server still running even though the GUI crashed

Some reasons why VMware Server is much more reliable compared to VMware Player (or VirtualBox.....) :

1. VMware Server supports Command Line. You could do anything (i.e. start, suspend, etc.) with your VM from console only (without GUI) using vmware-cmd command. If you need VM when playing around with some new GUI application, it's good to start the VMware server using CLI only (from control-alt-F1 for example....)
   
2. If your GUI crashed (i.e. because you press control-alt-backspace by accident, or by a bug in software), as long as your Linux still running, you will not loose your VM session. When you login again to your GUI, and try to start the rdesktop session you will see this pop up :

Just select your last session, and you're done.