Trying lots of sights is a good reason to go to big gun shows and visit lots of shops. Any decent gun shop should be happy to let you pull them out of boxes and fire them up. If they won’t, go elsewhere.
The biggy is how does the sight hold true?
That Hakko Electropoint that I got for $75 at CDNN has been bounced around in the back of my truck foe 5 years and never lost its aim.
Sadly, they arent available anymore