I didn’t use my xEM for years, until I bought a https://flipperzero.one, which made it easy to clone 125 KHz low-security badges, for entry into gates.
When I first got my xNT, I modified my motorcycle to read my implant and start. I haven’t had that bike for a few years.
My FlexNT is perfect to use as a business card as it’s easy-to-read on pretty much any phone.
I use my finger magnet every day to diagnose electrical problems, identify the grade or type of metal I’m touching, and to pick up small magnetic tools.
I use the Apex Flex with PGP things, but I’m stuck on RSA 2048 for now.