New
#11
I think you missed one point, although I admit the point was well hidden in between the lines :)
Dual boot means that both operating systems have direct access to each other's disks. This in its turn means that if and when I set up a virtual machine to dual boot with another vm, I only have to have one vm running to move data between them. Much faster than running both virtual machines simultaneously and moving data over the network.
Not too often needed feature but an important one.
Some of us are virtualization freaks like me, or just interested in finding out what's possible.
Dual booting on physical hardware, I have one OS running. Running a vm I have two operating systems running at the same time on same hardware, visible on same displays. Having that vm set to dual boot, see my reply to Jimbo above.
Kari