One of the reasons these companies will continue to court is they believe its a "no cost" option for them. Few defendants when they win ask for the cost of the time taken to prepare a defence and attending court. But you can get some of your costs back (up to about £100). You sometimes can get more if the parking contractor (or their solicitors) have been particularly incompetent. [This is a high probability.] One example is discontinuing late. See here. Another example is the misuse of your personal information. See here.
These are exceptional cases but £100 is achievable as the example below shows. A template can be download at the end of this article.
Example Costs Schedule