What most people don't realize, is triples are actually less expensive starting out. When we originally ordered ours, the 525's (2) were a $47K upgrade, and the 496 HO's (3) was $15k less.
In all, we gained 5MPH, less upkeep, more handling capability and personally I think, it looks cool under the deck. all for less money. Oh and by the way, it is much more efficiant in fuel mileage, untill you go over 4000 rpm...I recommend the triple, however twin 700's would sure be nice. (for a cool $90K upgrade)