I always get drawn in by these things. "Here's a tool you know and love, and here's why it sucks and you need to change." I remember feeling the exact same way when I switched to homebrew from macports from fink.

I run NixOS as my main OS and sometimes I have to test my cross-platform software on OS X. For those situations it's nice to use Nix instead of having to use a foreign package manager.

Homebrew supports binaries as well ("bottles"). I rarely have to compile anything when using it.