One thing about the top tier optics is you can buy without much fear of quality concern...but it still comes down to personal preference if you're going to actually LIKE the optic. if you DON'T, you take a huge hit trying to flip it. However, if you buy a pre-owned top tier optic, you save 20-25% and that value stays pretty consistent to the 2nd and even 3rd owner.
I have a feeling something like this DNT 7-35 is gonna be worth 500 on the used market quite some time, which makes it pretty much risk free.
So far, Superior to the...
Eotech 5-25 shorty
Vortex Strike Eagle 5-25x
Bushnell Match Pro ED 5-30x
Arken 5-25x
Bushnell XRS Gen3 6-36x