Thanks. MCS is on "sale" right now for some of the trips.
Also, I've noticed the seats available in F has varied quite a bit for the same flight. Went from 6 to 2 to 1 and now up to 4 (per the Virgin website). This is over the course of the last five days. Not sure how often this happens but seems like one way to try and get people to pull the trigger if they are on the fence.