Anyone used one of the Rosco iPro Image Projectors? My technical director/scene designer saw one used for a high school UIL competition and declared that we had to have four. And that he would be able to print any picture he wanted to and just project it instead of having to paint a drop. Of course he didn't look way into it and to see that each slide is $35 and they say they only last 15-50hrs. And if you want to print your own you have to at least buy the one time use slide kit that's $25. How badly do the slides burn up? If we are doing a two week long production with a week of tech, do I need to buy multiples? Also, just wanted to see what people's opinions are of them.