It's a good programme, but I can't help thinking that a grand is barely worth winning for having to endure four dinner parties with complete strangers. You'd have to splash out about a oner on your night as well.
I think Khan has a chance, depending on whether he has the patience to execute Roach's fight plan and also depending on how Barrera is. His last couple of fights have been pretty low key, so it's difficult to tell what kind of level he's been at.