One of my 3D TV's is a Samsung which uses Blue Tooth to keep the glasses and TV in sync. I have no problems walking around the floor that the TV's on and losing sync. And the old argument of glasses costing too much is getting a bit stale. BestBuy for example has Samsung 3D glasses for $19.99 and they are lighter then the sun glasses I use when outside.
Yes, glasses 3D will be nice, when it can match the quality that you can get now with the active or passive glass wear. But I'm enjoying 3D now and not having to wait for something that's a few years or more down the road.
That's all well and good. I still have my first HD TV set, a Toshiba, that I bought in the late 1990's. It cost my $3700.00, for a 34" CRT. No digital tuner for OTA and had component video outs. I've bought 7 more HD sets since. I've got a 22" that cost me $89.00. I feel like a chump, for paying all of that money out, in the late 90's. Of course, I can say the same thing, that I enjoyed it, before anyone else did. At least I could receive HBO and ESPN. It's hard to swallow, years later, once technology moves forward and you get HDMI outputs and 1080p picture quality. At least there's over 100 channels of HD programming that I can still use on my old Toshiba. I have to wonder if there will be any more content, then there already is for 3D, going forward. I still look at my DVD-A, SACD and HD DVD equipment that sits dormant in my closet. It does get maddening.