What are some items that really aren't worth paying the expensive version for?

I saw this post and wanted to ask the opposite. What are some items that really aren't worth paying the expensive version for? Preferably more extreme or unexpected examples.

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When I see people say stuff like "rc cola is almost indistinguishable from coke" it blows my mind. Do you actually mean you can't taste the difference? Or that you don't think the difference is worth the extra money?

I'm more curious where these people all get RC Cola, I haven't seen that stuff since the 90s...

I only had it a few times in Australia but I didn't like it, it tasted very different from the other colas.