All these unknown challengers in germany, croatia, not easy to be motived to go there...
used to be that tour level players play some challengers to pick up more points and rebuild their game... but 18 points for winning two matches and getting into the quarters, like soulage pointed out, is really measly
(though i acknowledge that he won them too easily
why not go to exotic locations around europe, marine? that aspect seem quite pleasant to me (perhaps not in winter)