Really Like my Thermoworks Therma Pen https://www.thermoworks.com/Thermapen-Mk4 expensive as heck but works better than anything cheaper. The thermopop is a good starter item but the pen is way nicer. Like the Dualit Toaster, BIFL but probably could buy a lifetime of toasters for what it costs And AKG701 Headphones, im the second owner of them and Ive owned them for over 5 years and they still work and look great.
Seconded on the Thermapen. Mine is now a "classic." My mother-in-law bought it for me with a hideous Guy Fieri flame job on it; fortunately I was able to get a free glow-in-the-dark silicone sleeve. It's also worth pointing out that decent pans and decent knives last forever. I have some good Costco pans and some basic Wusthof knives that are sixteen years old and nowhere near done.