The cost and upkeep on a projector is quite high, every 3000hrs, or about 2 years at 5 hrs a day, you're looking at a $50-250+ bulb, in this case around $350. LCDs are harder to fix if they screw up, but have a life of about 20-60khrs. The cost of this projector is around $2500 in comparison to a 50" LCD being about $1000 less.
Space for a TV and Project is determined by their diagonal resolution, in this example the 50" HDTV would take up a wall area of around 44"x25" screen area vs the 150" projection requiring 131"x74" screen area, this is not to mention the fact that the larger screen has a much lower resolution density unless you up your resolution to 2160p, but then Blu-ray is pointless. The viewing/projection distance is around 20' recommended for the 150" also so you're talking about a much larger room.
I know you were probably being sarcastic but even with the size you're talking about I think 3d is a waste of home-theater time, maybe at some point in the future if holographic projection technology actually comes into pay it might be worth my time, but even with high end home projectors it isn't in my opinion.
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TV vs Projector:
The cost and upkeep on a projector is quite high, every 3000hrs, or about 2 years at 5 hrs a day, you're looking at a $50-250+ bulb, in this case around $350. LCDs are harder to fix if they screw up, but have a life of about 20-60khrs. The cost of this projector is around $2500 in comparison to a 50" LCD being about $1000 less.
Space for a TV and Project is determined by their diagonal resolution, in this example the 50" HDTV would take up a wall area of around 44"x25" screen area vs the 150" projection requiring 131"x74" screen area, this is not to mention the fact that the larger screen has a much lower resolution density unless you up your resolution to 2160p, but then Blu-ray is pointless. The viewing/projection distance is around 20' recommended for the 150" also so you're talking about a much larger room.
I know you were probably being sarcastic but even with the size you're talking about I think 3d is a waste of home-theater time, maybe at some point in the future if holographic projection technology actually comes into pay it might be worth my time, but even with high end home projectors it isn't in my opinion.