Hell yes! Totally! Personal page customization is a must going forward. If not this way, another way, but something where we can choose what data to display, and not a standard blog list page. Sections, categories, customized content adding, will make our pages more attractive and easier to manage content to find.
I'd go with simple containers.. (knowing from user experience in a couple of sites, complexity and millions of custimizations shouldn't be in the vanilla product ;) )