Once we adjust for the number of cards in a set, the price becomes roughly $50 total
In this case, you have to counter a spell that costs three mana or less
Gonti, Canny Acquisitor This aetherborn rogue takes some figuring, but I can totally see why it fronted the Grand Larceny Commander precon from Outlaws of Thunder Junction Commander
Used properly, this can prove to be utterly devastating to an opponents plans
There doesn't seem to be any real need for these ETB lands - there's quite a few either double white or double black spells, but they all cost 4+ mana, so the odds of you ending up with 3 of a single tapping land are not that high
While such drastic action is unlikely to pan out in reality, its hard not to sympathize with those feeling swindled on this one