Should I switch to a larger room?

My current listening room is 10x12. Since I live alone, I could make my master bedroom my dedicated listening room.  It is 13x18.  Switching rooms would be a PITA, but is it worth doing?  My speakers are MMGs and they will be getting the Peter Gunn mod in the fall.  I do have some room treatment from GIK Acoustics delivering in a few weeks, but what I ordered was based on my 10x12 room.