If I was a player, it would be a no doubt situation to play in Memphis than Marseille. Easy field for a 500, lots of points and money to be won.
Unless Marseille is guaranteeing Fish a large appearance fee, which is why he's playing there.
I´ve always thought the same thing, especially for lower ranked players there are many points to be won at San Jose, Memphis and Delray Beach, the field is so weak.
Apparently Fish is getting a nice appearance fee from Marseille. And considering he played Davis Cup in EUrope and will play in Dubai, it makes sense to stay in Europe.