If the $200 extra doesn't bother you then just get it. The truth of it is that for most 'normal' computing tasks and use cases, 8GB is plenty. Now, many folks will tell you that it isn't enough and will cripple the machine etc.. but that simply isn't true.
I have an 8GB M2 Air (with the 'slow' SSD) and an M1Pro with 16GB. There is literally nothing I can get to slow either machine down, unless I open up stupid numbers of documents and apps, just to try and see how far I can get. In normal computing scenarios, both machines remain fast and responsive.
Others will say that you can tell if you need more memory by looking at Activity Monitor, Memory Pressure and swap usage. All I can say is that Activity Monitor seems to have been designed by Apple marketing to create anxiety and push people to configure more RAM. Sure, I can push memory pressure into the yellow or even the red, along with gigabytes of Swap Usage but the machine doesn't feel unresponsive under such conditions, and when when the memory pressure is well into the red, I can still scroll like butter, multitask like a madman, as if nothing is wrong.
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As much as I defend the 8GB machine, I do realize that future versions of the OS might have higher memory demands. That is several years away, at which point the M2 itself is going to feel long in the tooth. Still, I wish there was a way to upgrade RAM to breathe life into an older machine and I can't forgive or defend Apple for taking that option away. All they have done is created a situation where people buy more RAM than they need because of discussion forums like this.