The thing Synology does which no competitor is yet doing is rock-solid stability.
I have a 10 year old Synology running as well as it did the day I bought it, and I've never needed to troubleshoot a single issue on it.
Until a competitor can match that I will still be buying Synology, with the increased drive price the cost I pay for that stability.
I think people underestimate the value of that.
It looks negligible because the left and right sides don't both start at the bottom.
Terrible visualisation of what could have been very interesting data.