No - sorry. It's very muddled. For a start, the adjective 'worthy' has NOTHING to do with value for money, and it can never be used in this context. The simplest thing for you to do is forget this word 'worthy' and just not use it at all. It is not a useful word. The sentence as a whole could be rephrased as something like this: 'This is the best value product on the market' or, more informally, perhaps 'You can't get better value than this'.