Microtransactions are pretty obnoxious in most cases but definitely the worst is ones that involve RNG like the treasure boxes in destiny. It's some of the worst RNG I've seen. Right now in my opinion titanfall 2's is probably the best microtransactions out there. All they are are packs of emblems and banners, gun and pilot camos in another then titan camo packs and then last the prime titan packs. They're all pretty cheap too.