Flying 8 hours first class 9 days after you play one indoor match on clay of all surfaces to play an ATP 500 event in your home country is too draining? You feeling ok? NBA players fly 5 hour flights and play less than 16 hours later....
Federer, Nadal and Djokovic pander to plutocrats and charge huge appearance fees. The "trickle down effect" means that tournaments like the Heineken Open now have to pay appearance money for racketeers that many of us have never heard of. It's close to extortion.
At the end of Federer's first round match at the Australian Open a fawning interviewer asked about his kids and if he had bought coach Stefan Edberg a birthday present - no, by the way, the privilege of knocking up with 'King Roger' was enough of a present apparently.
There's no obvious logic behind the decision, maybe Mardy has immersed himself in French culture and feels like a whole new world has opened up to him. Probably enjoying the crisp winter sunshine as stops to sip his cup of coffee, before he gets back to reading Satre.