If I understand right, its stay at the FS and you buy L & D yourself or the FI & can spend up to $46 daily on food. But you don't mind eating on the cheap (say $15 x 30 days = $450).
So you are paying approx $450 for those extra 20,000 points which are barely enough for a decent RI room somewhere, not a good exchange. Is that $46 daily limited to just food or can you enjoy alcohol too?
But you have the ambience of a downtown, entertainment and perhaps a CL you can grab a light lunch & dinner out of at times.
So, IMO, not worth it solely for the points. But on a 30 day stay, assuming you aren't working around the clock, a larger room, TV channel choices and entertainment options are a bigger factor for me although you could just as well drive in from the FFI too.
Maybe name the town & properties and others could help you with some local color? Good luck!