I feel it is quite alright to take a break now and then. For me, inspiration always returns. It is when I try and force myself to play, that I grow really weary of a game - and the longer it will take for me feel inspired a new. In my experience, we must allow ourselves some recharging. I believe all fields of creativity share this, that the "artist" have some periods of rest followed by ones of inspiration and productivity. Authors have to leave a work in progress now and then, and then return to it when they feel the ideas are coming back or taking them in a new direction.