"One other interesting dynamic: sales teams always think it's better to add things than to remove things (after all, you can't sell the things you remove), which I now realize is partially the reason many enterprise software packages feel "bloated" over time."

I'm experiencing exactly this. It's like they want to have every feature to be able to whip out for every type of customer. They dread the circumstance where they have to say "Sorry, we don't do that."