Valid point and I fall into this camp for all sorts of key software (e.g. you'd never catch me spending more than 5 mins tweaking a new web browser).
For other software, e.g. my editor, my mail client - software i'm producing content in, rather than consuming, i'll happily put in a few hours up front to get comfortable on the grounds that i will reap a greater reward in time saved medium term.
If I could have seen that there would have been some value outside of what I currently use, I'd totally look into it. I too am more likely to spend some time messing around with editors, IDEs and other tools than I am email clients though.
For other software, e.g. my editor, my mail client - software i'm producing content in, rather than consuming, i'll happily put in a few hours up front to get comfortable on the grounds that i will reap a greater reward in time saved medium term.