I’ve had my Leupold GX-2 since 2010. Don’t remember the price, but perhaps around $200-300. Not a big investment if divided per year or round. I’ve spent way more on balls. It’s not a replacement for the course guide, which I always want to carry if they got one. The rangefinder is a distance measuring tool and doesn’t show the layout of a hole. Many courses around here doesn’t have much in ways of markers. Typically 200, 150 and 100 meters. So the on-course aid hasn’t been affected by the tools. I used to have to study the guide, look for one of those three markers and try to walk off and guesstimate distances. Now I can focus on my approach, where to aim and quickly get the distances I need. I play faster and better with it.

Yeah, @iacas, here’s another article echoing the last one you posted: CDC Studies 'Breakthrough' COVID Cases Among People Already Vaccinated COVID-19 vaccines are highly effective but don't always provide perfect protection. Some...  

could not have said it any better

Lesson coming up on Thursday 4/15: After 5-6 weeks of really good ball striking (by my standards), full swing has regressed. After my last lesson, I had some backswing and transition weight/pressure shift feels that worked really well. I was hitting almost everything with center-face contact (within tolerance of a mid-handicap player), AoA and launch angles were all in the right window, ball was going where I aimed it, shot shape was reliable, distance improved. Then in my last round suddenly I had no idea where the ball was going to go. I have a little deal with myself, that if I can get my index below 10 and keep it there, I am getting fitted for a new driver, so I am a little miffed at what I experienced last round. I doubt there was a sudden change (maybe there was, who knows), but what I suspect is that there was some slower, less noticeable regression that was going on, that finally transitioned into a significant on course problem. Putting and short game are still good enough (nothing special), so that at least I am not losing any strokes with these elements. I've gone back to basics for now with practicing, and I don't want to over-self-diagnose any issues and use a shotgun approach to problem solving, so happy that I have a lesson this week to figure out what's gone wrong.

Very carefully.