As much as I sympathize (deeply) with all the criticism of Homebrew here on this thread -- I used to use MacPorts religiously and love it -- I don't think Homebrew took the field purely through sneaky marketing or n00b decisions alone. They leveraged the momentum of a lot of new devs coming to OS X and provided an easier path for people wanting to help out.
I hate to say it, but if this was a race (?), Homebrew won. Thankfully we all still have the choice to use MacPorts if we want, but there's no point in being mean about Homebrew at this point either.