This is true. I don't do video editing or other memory intensive things, but I got 16GB anyway on my 15 inch MBP. I have never seen my system go above 8 GB, or even 6 GB. It's nice to have the extra RAM, but like the poster said, it all depends on what you use the system for.Can't say without more on what you're using it for. The money saved could well go to something far more relevant for your needs.
I would say we would need more info on the users needs. For many 8gb is still reasonable, although 16gb is more future proof. I wouldn’t advise anyone to get 32GB ram unless they know outright that they need it (for pros using VMs or editing 4K videos). As a rule, if you have to ask if it’s worth upgrade, you likely don’t need it.32gb? depends on what you are doing, 16gb? definitely. 8gb is just too small by today’s standards.
In order to better advise we really need more details on your intended usage of the machine. Also I would check you activity monitor on your current machine (assuming you have one of course), and see what your memory pressure is. If you have 8Gb RAM currently and you are not pressing it hard, like less than 50% pressure, I’d say don’t bother with an upgrade yet. If you are hitting 60-75% memory pressure then it might be worth the upgrade.Worth the upgrade?
8 GB is perfectly fine, in fact that’s what I have on my iMac 5k and I run multiple chrome tabs, Logic Pro X with 40vsts and Final Cut Pro X at the same time. Never reached the maximum, I guess macOS knows how to handle the Ram management. If you want to use virtual machines or want to keep the MB a little more future proof then go for 16GB. If you want to save some money and still having a great performing machine then stay with 8GB.