Originally Posted by TwinSwords
Bob did mention that there is cost to rewire vBulletin to the comments each time there's a redesign.
You're right that this was the key reason for the switch. And it's not just the money. We never found a really good programmer to maintain the custom "bridge" between vBulletin and the videopage, so we were severely restricted in our ability to stay current on upgrades to both the website's content management system and vBulletin itself. And that led to security problems, and usability problems, and ... well, it just got untenable in the end.