I've had launchpad under the trackpad gesture, so I didn't need to use the keyboard at all, which DOES make a difference for convenience. If you don't see that then you don't see that, but I do, and I can't be the only one. Also, a much larger number of apps could be seen - and chosen from - at the same time, without scrolling. They were organized the way I want them (including custom folders) and not alphabetically. I had all my apps there, whereas the applications folder does NOT show my web apps.
I just moved to Mac from Windows a year ago, for the first time, and so I had to re-learn a great deal of things, and it wasn't a problem. It's not about re-learning, it's about losing a ton of functionality and convenience in the name of... what exactly?
[Edited by Moderator]