I take it you mean is it worth keeping the wax....the answer is no
But if you mean is it worth cleaning the frames to reuse..... the answer is yes!
Take the wax out. Takes a couple of seconds if cold.
Takes a minute or two to scrape the wax off the frame and remove the fixing top bar and the bottom bar opposite it.
It is as quick as making a new frame up!
It is ready for new wax when you need it. Slot the wax in, fix the two removed bars and you are there. I have frames that have been reused loads of times!
I apologise if you were just talking about the wax