I just re-read that, sorry, I didn't mean it to sound like that at all.
It's not that you're wasting your weed, it works just fine.

It's just that cheese, like peanut butter, nutella etc, is not great at absorbing THC.
Generally, the 'quick fix' recipes like toasted sandwiches, and firecrackers, work on surface/contact absorption, where heat is applied to THC when it is mixed, or in contact with, something that contains saturated fat.
The transfer ratio of this method is pretty low, only about 10 to 20 percent of the total THC content binds to the fat (the rest passes through the body undigested/unabsorbed).

Think of it like putting a tea bag on top of some damp kitchen roll, some of the tea is exposed to the moisture, but nowhere near as much as when it is totally 'steeped' in hot water.
It just means people have to use quite a lot more weed to compensate for the loss, when a quarter of that amount would have more than got the job done.

For example, there's a thread about someone who put 3.5 grams in some milk and honey, it got him well and truly 'blitzed', but in reality, there was probably enough THC there for half a dozen people to get just as high, assuming it had been extracted first and then added to the drink.

I should have volunteered to make it for him using the clarified butter extraction method, we'd both still be high lol.