Lots of folks put glass on levers because their eyes are weaker than they were when they were young.
There’s an easy explanation for why use a laser boresighter: I can boresight a rifle in my shop in less that 5 minutes. Not one round of ammo expended. It’s a no-brainer for me.
I agree on the BLR. It’s ten times the firearm than a 94.
For you, it is a money-making tool. You’re charging for your time and the more high-dollar work you can get done in a set period of time, the better. So for you, I understand the use of it.
For the average joe... I just don’t see how it is the best use of money or even a good use of money. Most shooters would benefit a lot more from putting the money into ammo and shooting more.