Depends on if you have the money to spare, and if you have a 4K TV.
Overall, I find the Pro to be a much better running system all around, given that it has the option to enhance certain games with corresponding "Pro Patches" (games like Knack, Killing Floor 2, etc).
However, if you don't plan on getting a 4K TV anytime soon, then I'd just wait.
Then if the time comes and your system dies on you, maybe then you can feel better about getting a Pro -- which hopefully by that point would have gone down in price.
PS4 Pro 4K gaming and game boost option and supports 5G wifi for faster download speeds if you require it. I have the standard PS4's and a Pro.The Pro is faster loading games and you obviously see better quality and detail and you have the extra option to even broadcast in 1080p were the standard is only 720p tops.
I have both, and you have less lag, it's better for PSVR (dont know if you have it or plan to get it some days), and if you have a good TV, you can activate HDR with the Pro