I don't use projection extremely often but when I so it's usually to flood a non-lit cyc with scenery or playing a video clip in a dark lit school gym. I guess my question is can I go with more of a standard projector such as a Epson Home Cinema 1440? I'm looking for something in the 4-5k lumen range and don't really need anything brighter. I do not use a wide range of various inputs that would require capability such as SDI, etc. I understand I cannot change lenses, however placement of the projector is not an issue in most situations. I also would like to have full HD resolution available as well. Just wondering in my situation if there is no advantage of going with an expensive pro model or a more home theatre model would work just as well.