I'm agree with all your message, except this point. In my esperience with vb, i have many many many problems with the addons. Many problems of incompatibility within mods, problems with performance, problems with security, problems with poor or inconsistent updates...Many many vb addons are horrible coded, and very poor support from the devs. There are no minimum guarantee with free mods (not only for quality, but also of upgrades, support). And with my old vb board we have "only" 10 mods, now with a software that bases much in third part devs how many mods i need? I think many admins have the same problem. I understand the problems of development, but i think that a software "very heavily based" on third part devs can open many problems...My only hope is to see more pro addons in the future.
Except this, i'm totally agree with the rest for your post.