The higher end Plasmas have anti-glare coating that really improves a lot of the issues with reflections. I have two Pioneer and one Panasonic. The Panasonic is usually watched in a dark room and the only reflection that is a problem is a hall light directly behind the seating area, if all the other lights are off and that is on it's bothersome. The lights on the side can be on with no problem whatsoever. The Pioneer upstairs is in a room with windows and glass doors on almost every side of it, I had to turn the brightness and contrast up SLIGHTLY from ideal to compensate. This is our main TV and glare is rarely if ever a problem. The bedroom Pioneer is viewed with the room lights off except for a reading light next to the side of the bed on. This light is right above / next to the "seating" position and never causes a problem with reflection. As for watching from an angle, we commonly view it from the bathroom at about 130 degrees angle in the morning while getting ready and it looks great.
The stated viewing angles for LCD/LED are what's ridiculous. You may be able to see the picture from that angle but the colors and contrast are completely out of whack.
Imagine retention can occur on LCD as well, BTW. However I play video games often, my wife almost never turns the other two off Food Network or The Cooking Channel so their logos are featured prominently for long hours at a time and I've never had a single scare with image retention on any of them. Even when she falls asleep with it on and it's been on Food Network of ESPN with the ticker at the bottom for 12-15 hours straight. The pixel orbiters are so good they are undetectable by the human eye.
Compared to the blooming effect you get in dark scenes with all but the very best LED/LCDs (and it's still there to some degree), weird Soap Opera effect on movies, poorer SD picture quality, inferior black levels and high prices for comparable performance I'd take a Plasma over LCD in almost any situation.
I respect that you prefer LCD over Plasma but these are my experiences and reasons for preferring Plasma.
I've got a room where we do most of our viewing. The room juts out from the back of the house and has windows on three walls, 9 windows in total. On a bright sunny day, I do have to put the blinds down, but most of the time we watch with some of the blinds up and I have no problem with glare. I've had 3 Panny plasmas in that room, each with the glare reducing screens and we are just not bothered with glare.
Show me something better and I'd buy it.