There's been a bit of anti-mouse talk on here, but I recently took the time to get mouse support on vim in Terminal.app working. I have my notes here: http://www.reasonablyopinionated.com/2011/11/mouse-support-f...

While I do agree using the mouse for cursor positioning isn't always the best use of the mouse, there are situations where it's just better. For instance, using mouse scrolling in vim is very convenient, and mouse selection and paste is also very convenient. It's even better when you can use it across the network!