1080P tv or Projector ???

I watch a projector (123" screen) exclusively. It is ok with light in the room but great with darkened room. I only have two windows therefore it is easy to black out. I will never go back to a TV. Generally the projectors are cheaper, larger and have great picture quality. Mine is 1270x720 resolution. I may upgrade to higher resolution when blu rey or HD DVD is established and has more titles and when the price of the higher resolution machines come down in price. For current television I don't think you would see much difference with higher resolution. If I had a large amount of light coming into the room I might have a different perspective. See projectorcentral.com for much more information on the subject.

Have you viewed both? How does the projector resolution stack up? If the Yamaha picture compares well in real world viewing, and you have the proper room, go for it. I have seen spectacular projector image and also some not so hot, never seen the Yamaha so I cant comment. If the image is not in the same league as the TV you may end up regretting choosing the projector. 1080 RPTVs can produce beautiful image and 73" is big unless you have a lot of space. You may kick yourself wishing for the bigger experience, but then again you might end up unsatisfied with the contrast and resolution. View both and remember, size matters, but so does performance.

Disclaimer: Hi-Def TV looks great on my projector.

Standard-Def TV on my projector stinks.

Snooker,

Have you included the price of a screen in your calculations? A 100" Stewart fixed FireHawk is likely to cost at least $1500. With the 1080p Sony Ruby selling for around $3K, why would you consider a 720p projector? I think an LCD or plasma TV on a stand that can be rolled aside for projection is ideal, 'cause I wouldn't want to watch the PBS Evening News, the Daily Show, and the Colbert Report on a projector in a dark room.

db

Get a projector! What Mitch says is TRUE!
If you've got good light control, I recommend this one though over the Yamaha which is a 720p unit (I think) This one is 1080P:

http://www.ultimateavmag.com/videoprojectors/307panaptae/

Good Luck!