It's much easier to manage modules and improves security from a pentester's point of view (among other things).
As you now know, /pineapple provides a redirect. You leverage this for various things including phishing attacks, fake landing pages, etc.
For example, I've used the redirect to hook my victims into BeEF which in turn integrates with metasploit.
After that its all fun and games...for starters I like to play some random .wav files or turn their webcams on/off.