At fifty my eyes are only going to get worse! I love red dots! My Scorpion is set with a brace, a WML and a Sig Romeo5 RDS. It's primarily a range toy but I've used the Sig on it long enough to be pretty confident in it (plus the irons cowitness through the tube). Not sure if it's a "serious" enough gun to warrant buying an Aimpoint or Trijicon sight for it.

My Bren 805 however...I do run an Aimpoint on that one. It's set up as my serious HD firearm. IMO there are lots of great RDS for plinking and general shooting but a short list of truly battle-worthy optics. Aimpoints work best for me and my eyes. I've got astigmatism but it bothers me the least with Aimpoints, and even though the dot will distort when my eyes are fatigued it doesn't really impair my ability to gets accurate shots quickly.

My AR is currently set up with a magnified optic. I used to run an Aimpoint on it but I prefer the Bren 805 so the AR has been relegated to range gun use mostly.

I was at a buddy's place last week and tried his Beretta ARX with a RDS. Very impressive! It wasn't a top-tier optic but as proof of concept I was very intrigued. Red dots do for pistols what they do for rifles, and I think they're a legitimate game changer. Now I just have to decide which sidearm to get milled. The top contenders are all HKs; my USPf9, VP9 or P30S. My normal carry gun is a P2000 but I'm not sure if I'd go the RDS route on that one or not. It has a V2 LEM but I'd like to send to back to the mothership to get the V1 LEM dropped in. The VP9 would be a good candidate as it's the easiest to shoot well. My USP has a match trigger so it's actually the easiest to shoot well I guess but it's a bit bulky to CCW every day.