Centurions - Yes or No, are they the big money

I have been thinking about this a lot. I compare them to Riptides and Wraithknights. I have formed the opinion WK are not worth the points in general while Riptides are big money in the bank. Each is quite unique. The major advantage to the Centurion is it can be spammed to a higher degree than either Riptides or WK - more shots is more big money. The grav cannon is an awesome weapon in the current meta as well plus by attaching Tigurius they become a true sixth edition Death Star unit. I would probably take the maximum number you can fit in a land raider Crusader with Tigurius attached. Most armies have real problems versus AV14 plus Tigurius can start on the table and cast blessings on turn 1. I'd run another Death Star (biker squad) running behind the Crusader. This will easily crush Tau Riptide armies plus if grav weapons are FAQd to ignore cover versus armor then eldar are going to have some problems as well.