Much of a saving with half board vouchers for DLH?

[T--J]

Last year we went on our first trip to Disneyland Paris & stayed in the DLH with the free meals. We're off again this year & were hoping for the same deal but it doesn't look likely so we're going to go ahead & book with the 40/30% off. We can't decide if the HB vouchers are good value though because £540 for 3 nights seems like an awful lot! We'll most likely eat at Inventions on 2 nights so does anyone know where I can find the adult price? Any other feedback on HB vouchers very welcome!

Thanks