Normally things do get better and even if its small, it accumulates.
Display resolution
Display colors, refreshrate
Battery lifetime
Weight (x220 is much heavier then my x390)
Thickness
Techstandards like newer/better/faster wifi
USB-C (I love! charging my laptop with the same cable as my switch and my smartphone. Makes travel easier etc.)
If you are happy with it, feel free to keep using it, but i don't get why it is a possitive thing to not update/upgrade anything at all.
Normally things do get better and even if its small, it accumulates.
Display resolution Display colors, refreshrate Battery lifetime Weight (x220 is much heavier then my x390) Thickness Techstandards like newer/better/faster wifi USB-C (I love! charging my laptop with the same cable as my switch and my smartphone. Makes travel easier etc.)
If you are happy with it, feel free to keep using it, but i don't get why it is a possitive thing to not update/upgrade anything at all.