Some sets are easy to get and decent. That makes them very good for doing content that will get you the good but hard to get sets. Not every set is in the game with end game content in mind.
and then the parrot said, "must be the water mines green too."
More sets are decent than one would think. Not gonna hit 100k DPS with vast majority of them but it doesn't mean one is doomed to 50k either. Support-wise, there's some that are outside of what is normally thought of as useful that also works well.
PC/NA Dungeoneer (Tank/DPS/Heal), Trialist (DPS/Tank/Heal), and amateur Battlegrounder (DPS) with a passion for The Elder Scrolls lore
CP 2000+
Warden Healer - Arcanist Healer - Warden Brittleden - Stamarc - Sorc Tank - Necro Tank - Templar Tank - Arcanist Tank