"Which is only natural, but again if I recall with Pokemon the rarer Poke-Balls are much more scarce, so even with a higher resource cost to produce the higher tiered Pal Spheres means you still be able to obtain more of them then the rarer Poke-Balls."

True, true. But that is just how it goes with those survival-type games. Progression. Ore to ingots, or something else kind of basic. Like sand to glass, then making that glass into bottles or whatever else to create higher-end stuff and so on.

"That is indeed true."