I do not switch images much. I can use the plugins provided in most images to manually load other images without having to get into the hard drive and copy images to usb. This is easy for me to do and I do not have to worry about multiboot working or not.
Same with stored channels and antenna stings. I manually transfer them and do not worry about what image they came out of or if they will successfully transfer. Manual loading of channels, antenna settings, and images is just easier for me, but maybe not everybody else.