Static IP or Dynamic IP address?

Hello,

I am about to move one of my accounts over from my VPS to my macbook, only going to be using one account on that macbook, so no need for proxies etc. Just had a quick questions about the IP addresses on my machine.

Has anyone altered their IP address to be a static IP instead of a dynamic?

I'm thinking this would be good if i'm going to be using my accounts on different networks etc, it'll keep the same IP address for my account, whatever network I use.

TIA

Dynamic Ip - IP rotated between many people, so many other people could be doing things that could lead to the IP being blocked in many of the Spam checkers on internet. Happened to me. I used to get cloudfare captcha on visiting many websites coz i was on dynamic ip. Other people on the same network were spamming.
STATIIP - only assigned to you. so complete control over what you do with it. I never got blocked or captcha by getting switched to static ip. Had to pay my internet provider 3 dollars pm extra though.

Yeah I had a hunch a static IP would be better for it. Didn't realise you had to pay your ISP to have static IP though, can you just assign one manually on your computer?