I think Obama is behaving like a big baby, not thinking of people who booked those tours long ago only to find them cancelled. He is using this in an attempt to make the sequestration seem far worse than it really is as if to say to the public, "Look what the Republicans have caused."
There are so many other ways to cut wasteful government spending, and they should cut it across the board, giving agencies the opportunity to determine where to make those cuts in their own budgets. Obama is playing political games, now going on five years as he continues to campaign against Republicans, still unwilling to admit his failure as a leader.