My summary here would be that both are good, for different things. If I was deploying a personal site or a personal app, I would probably go with a VPS, because it's easier to set up, and can be a lot cheaper. But if scaling or uptime was a concern, I'd want to go the PaaS route. It comes with a few upfront costs (configuration, statelessness, price, etc) but is absolutely worth it in the long term.
I am dyslexic, and have struggled with reading all my life. Saccades are physically exhausting for me, and so I get fatigued quickly. I also subvocalise, which slows me down to 180 wpm or thereabouts.
RSVP is helpful because it removes the need for saccades, and so reduce fatigue. They also force you to stop subvocalising. As a result, I am able to read at 600 to 700 with high comprehension now. And over 1,000 to 1,200 wpm with enough comprehension to be useful for things I just need the gist of.
1,200 wpm. It's crazy. I never thought it would be possible. But I suspect that if I continue to use RSVP, it will have a profound effect on my life. There is so much stuff I do not read, because I find the normal experience so painful.