Desks are searched within a walk or a short drive, usually by somebody working from home who has had enough. The intent is immediate, the comparison is on price and atmosphere, and a day pass closes it.
Meeting rooms are a separate business. They are hired by companies with no interest in membership, they fill weekday mornings, and the searches have far less competition than desk terms.
A registered address is searched nationally and has nothing to do with the room. It is small, recurring revenue from people who will never visit, and it is one of the least contested services a space offers.
Private offices are worth several desks, and small teams outgrowing a spare room look for exactly that. Those enquiries are fewer, slower and considerably more valuable.