I was thinking about a point earlier in the thread about the limits of 6 inch jointers. Seems to me the main use for wider is planing wide pieces for use as panels. But an 8 or even a 12 inch planer will still require you to do a glue up for, say, a 22 inch wide door. Unless you're doing a passel of doors all the time, I think that's a little hard to justify (unless you have money to burn-some do). So hand planing after a careful job of planer use to even up the face still sounds like a good deal. Yes, it would be nice to be able to glue up, then joint and plane a wide panel, but nice doesn't always fit in my budget.
The more I do, the less I accomplish.