I'd suggest rethinking this post-haste, because a) pricing is a signal of quality and you being cheap makes it unlikely any "serious businessman" will use you and b) the true price of your offering is not the amount of money you charge but the hassle I incur getting the charge authorized either by myself or my line manager, and that hassle does not bear anything like a linear relationship to costs at low dollar amounts.<p>(Dragging my credit card out of my wallet is <i>far</i> more of an annoyance to me than spending $5 a month, and you should see the form I'd have to fill out to get comped for it.  I pay for my own hotels when I work overtime because it causes me less stress to pay $60 than it does to babysit a reimbursement request for two to four weeks.)