As an amateur/ hobbyist photographer ... I feel I should mention a couple view points. I'll start with cost ... there's always a risk of inconsiderate renters, and adjusting the price according to use does seem as above mentioned a little greedy. Second, property release forms for photography i'm learning only need to be done, if images are to be sold or used for advertising. Which means for example, if a person rents it for a boudoir shoot that will be private and never seen, likelihood of a release being needed is slim to none, as they aren't being commercially used images. Also, if they ARE being commercially used, the need for one can be "skirted" by the location/ area photographed, not being unique enough to be positively identified. (Likelihood doesn't count)
Someone mentioned porn ... it's nearly impossible for you to know if someone has made a "home video". Do you have a "no fornication" policy? No? .. so it only matters to you if they set up their camera? Let's face it, have you ever rented to newly weds? How did you spend YOUR honeymoon?
Long story short, there's a large difference between a photoshoot, and a film crew. Also, if they are contacting you and being direct about intentions, why charge extra for honesty? You set your nightly rate, at an amount that is satisfactory to you for its use. If no damage is done, why change that price? Why not instead use it as an opportunity to maybe get some high quality photos from the person renting?