If it rolls across the face of the earth it's of interest to me. Was equally a roadgeek and "railhead" in my youth; the former always stayed with me, while the latter was largely confined to model RR's and, later, rail photography. In my middle years I started taking Amtrak whenever it fit my plans -- but a couple of cross-country trips on that carrier that ended up being a very mixed bag (either it was wonderful or it sucked -- little "middle ground") has led me to utilize local commutes and/or Amtrak California (in-state subsidized service) -- which mostly doesn't suck! But if you ever have the opportunity to take the Cascade service (Eugene-Seattle-Vancouver) do so; it's not bad (the wreck a couple of years back notwithstanding -- but they tend not to make the same mistake twice when it comes to safety issues).
I took the train a few times between Portland and Tacoma when I was in college. Also one time in high school my class took the train from Portland to Seattle and back for some Model Congress AP Government extracurricular. I'm sure I took the Cascades trains for some of those trips (this was about 20 years ago). If they only ran from Eugene to Vancouver BC, then they were likely the trains that were on-time most frequently. One time I took a train that had apparently originated in LA, and it was
five hours late due to all the delays. Amtrak really needs its own high speed rail line in the corridor. I'd visit Seattle or Eugene a lot more often, and could even see my relatives up in Vancouver if I get my passport renewed.
Speaking of rail lines, I also walked along the railroad grade as part of the trip to the Shellrock Mountain segment. The two coolest things about it:


These were taken looking eastbound down the line. The first says "5082" and the other says "5104". They occurred at culverts which drain into the Columbia. They were distanced about 2/10-mile from each other, so they were likely mileposts of some sort. I didn't really see anything else along the line.