The only problem with really decent glass is that once you use it and get used to using it, nothing else is good enough anymore.
There are other options out there that are in the same range in quality as the NF. Some are more expensive and some are cheaper.
I have a love affair going with IOR Valdada offerings at about half the price to the same price, depending which model.
Zeiss, high end Leupolds, maybe the Vortex and Sightron. I've looked through and am impressed with the sharpness and clarity of the Vortex and Sightron offerings but I'm not impressed with their adjustments and repeatability of those adjustments. That is my humble opinion only. Other folks love them. I feel they aren't much better than the Bushenell 6500, which I also have a lot of respect for as well as their adjustments and repeatability.
Positive, repeatable adjustments are very important at longer ranges, not so much at shorter ranges.