>>41807876To be fair, shinies are inherantly worthless. Aside from spoofers, you'll seldom find a shiny that is really usable for anything much less a trophy to put in gyms. To that end, rarity and something being "worth it" for a trade is really dependant on what you want, just because someone has an SSS pikachu, they may just as well trade it for a shiny shellder because they like it better than Pikachu and never could find one. And if both parties leave happy, hard to say if one side got ripped off or not.