The ones up Ditchling Road? They're often full. I suppose it depends on the time. (There's a tennis club that meets up there). When I'm working at home I walk past them every day with the dogs.
Off topic a bit, but these prices seem a bit steep. No wonder 'poor' kids don't play and thus we (Britain) miss out on a lot of potential talent.
Yeah, those ones. There's usually a court free at the weekend (and they're often free too, as there's often no attendant there). I agree with you on the prices if you do have to pay