Initially I was looking for a backup/alternate rig....I already had a GK MB212-ii combo and didn't really want another combo. In addition, I wanted the option of being able to add or swap cabinets if/when needed, or just bring the head along, etc, so really just the added flexibility. I ended up liking the Rumble so much, its typically my first choice and the GK stays homeThough you can hook up the 210 to the combo as well. Why do you prefer the head?