Grooming is very very important. In fact, when I have tough decisions to make such as whether to run down the hall or pounce on Myst, I stop to groom myself. When I can not decide if I want to sleep in one room or another, I stop to groom myself. When I am playing with Myst or Dandelion and am waiting for them to come around a corner and they take their own sweet time, I stop to groom myself.
It is a great thing to do when there's a spare moment.