Not sure about money (important for Brown) and if they can earn more with entering to some Challenger final or to loose in 1st or 2nd round in some small ATP tournament
Maybe they will try to do something more on the Tour in next year,in the meanwhile Challengers are there to be taken
Sounds reasonable Dustin doesn't have the singles ranking to play ATP events yet, that's probably the main drive for him, but also the money in playing and winning challengers in doubles definitely is a help. He seems to enjoy doubles and I guess he wants to be a duel singles and doubles guy. If he can attain a top 100 ranking for a consistent basis I'm sure he and Rogier will start playing more ATP events together. They are in the top 100 in doubles so hopefully they can play some events together that Dustin gets in directly in singles.