I used to have quite a few things that seemed more useful than they turned out to be, but after losing everything to a fire, I never replaced them. Several years of experience and growth/modification of workflow have changed what I thought of as requirements.
I do still have a few things that I don't use very often, but are very valuable when I do need them.
The TS75 is one of those. I might only use it every couple of months, but it is the best way, when I need it.
Conversely, I use the TS55 every day and would be lost without it, yet never used one before 2 years ago.
This is mostly because of my work, I am prepared for nearly anything, because I don't choose what I build. Sometimes I go a while without using some things, then comes a rush of it, you just never know.
