I am not against charging for an add on, just the amount of money they are charging.
I've been a member here around 2 years, under a different name, and I have purchased a few add ons for VB- but will never buy one that is about the same price as VBulletin itself. No add on should cost more than $80. IMHO.
I think all of the PhotoPost fans might disagree with that dollar amount.
Personally the $160 for me is a bit of sticker shock but I would consider it for at least one of my sites if the testimonials from everybody showed that it lived up to it's promise..... but the site in question is a commercial site and there is no way that I will install a product on there if the source isn't visible. For now at least I'll keep monitoring the statuses of the visible source alternatives to see what direction they go in.