My wife wanted to get me something for my birthday. I figured nice tire pressure gauge would be a great gift! I always assumed digital gauges were most accurate/best but that's not always the case. For $20 shipped from Amazon I got this Joe's Racing gauge and really like it.
I had a digital Slime gauge but after a little over 2 years it pooped out on me, so I picked up a mechanical Slime gauge instead. I like it better! Even has a pressure release valve. I would however like a digital tread depth gauge.