If you do get one, I recommend buying the mount and optic differently. Main reason being on a weapon outside of an AR type platform, the mount might not make total sense.
As far as pricing, I think you're looking at it wrong. You're looking at the specs and all that, which is a good idea, but you have to think about reliability and long term. The Aimpoint and Trijicon will both work no matter what. They also have a lot more support and aftermarket products. Right now those other optics might have support but will that be the same in 5 years? 10 years? 20 years? Who knows.
If you bought an aimpoint in 1990s or a trijicon in the 90s, they'd still have parts for them. They'll still work too. Might need to get the tritium refilled on Trijicon products but it would still be good to go. Can you say the same with the other stuff?