I know the bulbs are expensive, so I wouldn't run a projector all day. But 60 inch plasma TVs are about 6000 dollars, and a top of the line projector is about $2000. That's about ten replacement bulbs, and in the meantime, technology could make everything obsolete.
I_wouldnt_buy_a_plasma_unless_they_drop_below_2000_for_a_60inch.
To_many_problems_with_burn_in.