[flavioheleno]

I think that Buildpacks help when your Dockerfile is actually complex due to application's dependencies or build process. I worked at a company where we used a multi-stage build Dockerfile that was quite long and tedious to maintain and developers would avoid keeping it up-to-date. There is also another point when developers are used to PaaS such as Heroku that already handles the "build burden" for them and thus Buildpacks may ease the transition to using Dockerfile-based builds (if needed of course).