Putting a solar roofs over any open-air carpark you happen to own is just a hilariously easier option. Hell, you could erect these OVER the train tracks.
https://greenox-group.de/photovoltaik-carport/ (Article is in German, but it's really more around the picture)
According to a completely un-sourced picture I found online, one carpark (in the USA) is typically around 5.5 x 2.6m, so if you had even 50 carparks on your site you could have ~715 square metres of panels. More, if you figure a way to cover the aisles between the rows of carparks too.
At the top end of all applicable figures (panel efficiency, solar irradiance, inverter efficiency), that could net you ~160kW at solar midday.
Now on the other side, standard-gauge railway is around 1.4m wide, and maybe you could cram a 1m width of panels between the rails.
That sounds like a lot - 1000 square metres per kilometre, and there are thousands of kilometres of railway lines out there - but it's harder to install, harder to service, gets dirty faster, is liable to get damaged, and now you have to figure out how to extract power from somehing a kilometre long, instead of an area that could be a square only around 35m (~115') on a side (for the above 50 carparks).
I know which one of those I'd want to run the cables for.
As has been pointed out many times when this dumb-ass idea comes up, only once you've exhausted every other possibility (carparks, rooftops, putting panels ABOVE roads/rivers/canals/cycleways/railways) and have literally no other viable installation locations, then we can talk.
Surprisingly, no.
I've got both the first-gen Palma, and a Kindle Oasis (2017).
Ignoring anything that's purely a function of the Palma being significantly newer - has a cool-warm light while that model of Kindle is one colour temperature only, and that it has a faster-refreshing e-ink display, etc - it's still often a more pleasant experience.
The Palma is a little heavier (especially vs the Kindle without its case, which is typically how I use it), but because it's narrower much easier to hold. The Oasis does have the physical page turn buttons, but I never found them to be particularly well placed, always required holding it a bit awkwardly.
It's mildly painful for content that doesn't reflow (like PDFs) due to the phone-like 16:9 aspect, but imho for e-books is the superior experience.