All these exhibition matches, hell even the Abu Dhabi tournament are glorified practise sessions and since they do have to practise and prepare during the winter breaks anyway, I don't really see the problem here. That article is way over the top. Andy, Novak and Rafa have chosen places where they can hit the beach, combine it with rest and relaxing tourism and play those exhos at the same time. That's actually a cool idea. I think all of them will eventually find enough rest in December and during the festive periods anyway. No need to worry. You can't expect the world's best players to sit on their arses for 7-8 weeks. The hardest training regimes and workouts for next season are always done in the winter break anyway. If you can combine it with relaxing exhos, beach and sightseeing, all the better I guess.