Career wise, Wlad gains nothing by beating haye again.

Vitali's record is not going to be in dispute if he does not face haye.

Last time around Haye had a strap(3rd rate belt), he does not have that luxury of a bargaining chip this time around.
Smug, cocky Haye does not sell a fight as well after his no show against Wlad.

You could argue Vitali fighting Price would net as much cash as a fight with Haye.

Fighting Wlad's older brother because he got resoundingly beaten by Wlad is not as enticing as a unification bout.

After Haye stint in the Jungle he can hardly be called a credible opponent for either fighter.