I know this might belong in the "Licensed Customer Feedback," but I found it appropriate to be posted here, feel free to move it.
There are some people that do not have the ability to purchase $120 worth of software. (PT and Blog) There's the few who can. Some people (such as myself) would prefer to purchase only the blog, or PT, depending on a sites' topic.
I'd honestly find it more appropriate to keep selling the vBulletin components as parts, but also add the "Suite." I can see it alright to use CMS only in a fully upgraded (PT and Blog) board, but it's nice to be able to use just one or the other without having to pay for it.