I am in my mid-40s and have listened to Ueck all of my life. I would usually listen to the games instead of watching because of him and I know I am not alone in that. This is a very sad day. He was such a huge part of the lives of Brewers fans that it is hard to overstate the loss - and he meant even more given our 0 World Series titles (and lone appearance way back in 1982) and so many very lean years as he was always a reason to tune in, no matter the score. In fact, in games where we were down a lot he often turned up the personality and storytelling and those games could be just as (if not more) entertaining as close games and wins.
One nice thing is that people here truly appreciated him and over the past decade everyone felt super privileged to be able to hear every game that he called because we knew it couldn't last forever given his age. The players loved him, the fans loved him, and everyone really let him know, which is nice because too often people pass and then the world shows how appreciated they were only after they are gone when they can't experience it - Ueck got to see it.
His Hall of Fame induction speech is an all-time classic:
https://www.youtube.com/watch?v=h7dG5HCKeWA
Rest in peace Bob.