They seem to be harder to find, but I much prefer the 0.5mm signos over the 0.7mm when I can get them. Anything larger than 0.7 just swallows my small handwriting.
I've been a fountain pen user for years but in the last few years have found gel pens to be a good compromise for their relative reliability. The Uniball Signo 207/307 gives a clean line without much pressure, on par with some of my favorite fountain pens, plus I've been impressed with the waterproofness of the ink. (My overall favorite has to be the Parker 21, if only they didn't crack so easily!)
I'll have had my Kindle for ten years this fall and I still don't use it as much as I'd hoped or expected, but it's always been extremely handy to read a bunch of books from Project Gutenberg on vacation. My favorite part is definitely the screen, unlike most others I can read on it for hours without getting a headache.
This reminds me of the story of Saturn within General Motors. As I understand it, it was created to compete with popular imports like Honda and was given a long leash from GM to be "a different kind of car company" (in the words of their marketing). The first generation of cars were a lot different from any of GM's previous compact offerings. GM started reining in Saturn and moving toward badge engineering. Eventually it became the same kind of car company, because at the very top it always was.
Reminds me of Game Dev Tycoon's clever anti-piracy trick, where they released a "cracked" version of the game on file sharing sites shortly after launch. The "crack" disabled the copy protection but also changed the gameplay so that NPCs would pirate your products in-game and drive you out of (virtual) business.