I always use the one hour flight with an instructor to get differences training onto a new type that I havent flown before. This year, I am planning to get checked out on the Diamond Star.
If you have to pay to have an instructor sit with you, then gain some additional benefit, rather than a plod round the circuit, and a quick flight to the nearest airfield for a cuppa, in a tired and clapped out old Warrior/C152.
Either that, or as suggested, learn Aerobatics, Go practice PFLs and Fanstops, and flapless landings etc.
Remember too, that passing a check ride for the award of an additional rating negates the need for the one hour instructional flight. I have managed to co-ordinate my SEP renewal with my eyesight test, medical, and my IMC renewal, so I make it all as economic as possible.
Do a tailwheel course..... DO an IMC rating.... Night Rating.....Complex Aeroplane.... its all there. You are limited only by your own imagination.
Cheers