Interesting to note, I am going thru the same dilemma down here.
We are restricted in pellets at an affordable price.
I used some Traeger pellets at $33 for 9 kilo, then some Heater pellets labelled safe for BBQ at $15 for 15 kilo, I could not tell the difference in taste, they do have a small amount of Pine I am told, by the by, I add a handful of coarse hardwood sawdust to the mix, that smokes nicely
I will never be over the hill.
I'm too darn tired to climb it.