OK, a projector lamp has a life of xxxx hours. Say 3000.....for someone who doesn't use the projector very much......say just a couple of movies a week totaling about 5 hours on average. If that time were the average over the life of the lamp, that would figure to about 11 years of use. With current pj lamps, when does age figure into the life of the lamp? Would one last near that long if used that little? Or would it break down after a certain # of years?