I concider myself a reasonably serious board game player. I am also very busy on most days of the week.
On those busy days I usually don`t play games that require lot of thinking and analysing BUT play a few moves in games in which the next move is obvious and/or easy to come up with.
Some moves are easy and relaxing but some moves can feel like a duty IF you have to make them when you don`t feel like it.
For this reason I have sometimes used the vacation days the way Caissus objected to.