I would try the „retina formula“ to see, if the upgrade would benefit me.
Basically apples retina displays are engineered, that either the selected pixel density, pixel size and typical viewing distance, single pixels cannot be seen by the human eye. See https://en.wikipedia.org/wiki/Retina_display?wprov=sfti1#Rationale
If you have a small tv and it is several meters away from you, my guess would be that the difference is not that big.
Hi! I was in your situation in January. I went for a used two bay Synology 720+ model, that came with 10GB RAM and a used WD Red 4 TB WD40EFRX.
The main reason I switched to a NAS was an easy way to share our children’s photos with my SO. Synology is perfect for this, because the photos app has face recognition and can search through location data, which is coming in handy with 25K photos.
Second thing I wanted to do on the NAS was the whole backup strategy of our laptops. At the moment we rely on cloud backups, but I wanted to change this to a solid 3-2-1 strategy. On top the cloud backup never really worked on my SOs laptop.
I had no ambition with selfhosting, but am familiar with Linux. At the moment I have a paperless instance and jellyfish running. I plan to put some shows for the kids on it, my CD collection and am ripping my DVDs.
Until now the process was very smooth. Paperless has some minor hiccups I could iron out, but the whole Synology infrastructure is really solid.
I picked the 720+ because the perks of a 723+ seemed negligible to me. This page offers a good comparison: https://nascompares.com/guide/synology-ds720-vs-ds723-nas-which-should-you-choose/