if your schedule is booked solid then i can understand why you'd never consider offering a reduced rate.
it's not that i don't think i should have to pay as much - just that i'm not willing to spend $250/h at this point in my life, and i think there might be SPs who are willing to negotiate. so i'm asking. there's no harm in asking, right?
just like you're free to ask for $500/h, and it wouldn't offend our sensibilities.
and, i'm sure, there're men who you'll gladly spend time with and not charge anything.