I picked up a cheap onr from Wally world for about $20. I think it is a BSA, and it has worked great for me. The two drawbacks that I can envision ,which I have not actuall yexperianced, would be being on a hunt and your battery goes dead. Simple solution is to put new ones in each year. Secondly, If it is a really bright day and you are in an open field , you might have a hard time seeing the dot. But like I said, I haven't experianced this yet.

my .02

Spatrat