I agree that guest demands can be discouraging. Back when people were using Craigslist, I was starting to see more and more people under "housing wanted" who would provide a list of their needs and must-haves, but offer NO information about themselves or why they'd be a good tenant.
My house is a 3 bdr., 1.5 baths and they have access to the living room, den, and outside deck, as well as driveway parking. The amenities are listed clearly. I live in the house, so I have no access to anything more than they get while here, with the exception of wifi, which is a very limited plan. For less than half the price of a hotel room, or a 1 bdr. apartment, they get their own room, a full kitchen with dishes, pots, and pans, and I provide a brand new mattress, sheets, pillows, a closet and dresser, shelves, towels, soap, shampoo, and toilet paper. And those things are endless, since i live here and don't want to sequester the shampoo and soap in my bedroom.
However, I'm starting to see that I'm losing money, not making it. And people still want more.
I personally am considering an age limit (if it's possible) because I'm tired of 20's-somethings contacting me saying they want to pay less, or ignoring that I don't provide them with cable tv or wifi and don't have a washer/dryer. Then they arrive and are frustrated that I don't have those things. When they're used to living with Mom and Dad, they had those things at home. And sometimes, they didn't even have to use the washer/dryer because Mom did it for them.