how much for a years subscription?

im building a site where by people can advertise their "item" for hire.
like some people own a static caravan or minibus etc and they like to hire it out to cover costs, or for what ever reason.

basicly my site will be for people to put their "item" up on view 365 days of the year for people who are looking for said item.

my question is...how much should i charge for a years subscription?
£10/20/30+ ? im not too sure

"sorry if that isnt very clear, sort of confused myself for a moment"

 

It would depend on the item for hire I guess. Some people would be happy to pay £100 to advertise hiring a boat for a week, while some people will quibble about £10 to advertise their £50 hire carpet cleaner

 

As with any service, the user will compare what their return will be against your competition so I suggest you look at your competitor's pricing and see what you can offer and how that compares, think why you're better, what extra you can offer, then sell that.