Upgrading from vario with steel burrs

Hi, just wanted to see if it’s worth upgrading from my 8 year old vario with steel burrs. I exclusively do pour overs right now. I was wondering if the newer gen brew grinders such as an ode or A4Z would be a noticeable upgrade.

Also wondering if a P-80, kafatec max/sdrm, zerno z2 would be a noticeable upgrade from my vario (considering something that can also grind espresso if I ever get into espresso). Thanks !