+1 thermapen lover here. Got it for cooking a couple years ago as a gift and can't understand why I never had one before. It's now invaluable to me on brew day. Yep it's expensive but IMO worth it. I use for brewing and cooking. For steaks it is killer I always know just when to pull them at 125 for medium rare.
It's one of those things like really nice sunglasses. Once you spoil yourself with a pair it's really hard to go back to anything else. If my thermapen ever dies ill be buying another the next day.
/
I'm going to try out that 125 tip, that's exactly how I like my steaks!
/end