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Not necessarily a VPS, but any computer that stays on 24/7. Obviously, a VPS is more convenient though.

To run MN you need a fixed IP (order from your ISP, about 5-10 $/month extra cost) and should be aware that opening ports expose your computer to hackers!

Sure, I didn't want to get too technical in this article though because I am just starting to scratch the surface, do you have much experience running masternodes @chesatoshi ??

No, the only thing I manage at the moment is my own Wordpress crypto blog.

link?
PS: nevermind, found it: https://chesatochi.com/
very nice blog mate :)