@rdominguez Website Builder 7 will be around for awhile. Many users disappointed with the lack of customability in Go Central will keep using Website Builder 7. You can still request it for building new sites.
I once used Website Complete for my websites and Godaddy dropped support and basically screwed me over. How can I trust that Website Builder doesn't do the same thing?
The only truly safe way is to use Wordpress or write your own custom HTML.
On builders that don't have a migration path, the level of effort can usually be minimized by screen scraping and cut/paste... :-)