You can allow users to create droplet templates so they can plan their future droplets and duplicate their droplets easier. This also enables new users to experience how easy a droplet can be created before entering their billing info.
This is already available.
You can create a droplet and install whatever software you like.
After that just take a snapshot of it and then you can use that snapshot to create new droplets.
So if you create a Rails snapshot you can then create new Rails droplets from it which already have ruby, rails, unicorn, nginx, etc pre-installed.
You won't be notified about changes to this idea.