Update older board GA-Z68MX-UD2H-B3 currently running El Capitan to Sierra or High Sierra - worth the effort or update the hardware?

Hey all - longtime lurker. I’ve got an old(er) machine that I just tried to install iMovie on, but found out that the current App Store version will not install on El Capitan. So now, I’m looking into upgrading.

I’ve read a lot of posts on upgrades through the App Store, some people seem to have no problems, just works like a charm, others seem to have nothing but problems. Thoughts on updating? Is there anything I need to keep in mind if I try this? Is it even possible to get a copy of Sierra now? It seems like Apple removes all older/previous versions of their software.

submitted by /u/whatareyoubrewing
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