Vim is the best lightweight single file editor there is. That’s all it should be. If you’re heavily configuring it, you should be able to answer “why is this better than an ide?” Without saying “vim makes me cool”. Also, if you can answer that, please let me know! To me, an IDE is better for everything but what default vim is good at. And if you tell me that typing is faster, please also tell me why that’s relevant!
It's like TrackPoints versus mice. Once you're used to never leaving the home row, the alternative feels rough and unergonomic.