For me, installing from scratch is just running a single command (ansible-playbook). Nice and repeatable. 🙂 So to get a full node and lightning node, it's just two commands.
Of course setting up or restoring a wallet, opening channels, and all that is not part of the automation.
Personally, I like the ability to choose specific software and mix 'n' match, but I can certainly see why people would want these node-in-a-box type solutions.