The reason for the tennis courts is the LTA are paying for them. Sadly, most, if not all, council new projects are determined not by local need, but what national qwango funding is out there. It's a centralised way of controlling what councils "invest in". There have been several howlers recently up at the park with more to follow.
The big existing kids playpark near the life centre was only built a few years back and is still in good order.
Obviously somebody's mate owns a national company that manufactures these things at vast expense, so, of course, hundreds of parks are getting a needless "upgrade". People have said the money would be spent better elsewhere in the park, but of course the money is only available for the equipment, nothing else.
As to the tennis courts, the capital funding is already secured in the multi million funding deal, but there is nothing in the kitty to actually pay for their future management, security and upkeep, and the council have no intention whatsoever of paying for future overheads. They also have no intention of running a cafe that doesn't at least break even, Recipe for future problems, and maybe the tennis courts will be built but never used. Maybe they'll become a private members' club with no access for the genral public, but built at public expense. But hey, that's what happens when manufacturing demand and mates' interests and profits comes before community need. No austerity for them.