You're in the minority then.
Stuff like Pinnacle Station was practically a waste of money altogether. Bring Down the Sky was decent enough, but Bioware was smart to just practically make it free later on for every re-release. The Cerberus Network was an enormous waste of money and a huge scam if you didn't buy it new (and now it's free too, the price it should have been). Kasumi: Stolen Memory is decent, but barely lasts an hour. Same for Arrival, which is pretty much just fluff with little bearing on the actual narrative. We all know Javik should have been in the base game and not held at ransom for $10. Leviathan is pretty good and atmospheric, but it's barely an hour of content, at most. Omega was a wash. Any I'm forgetting?
Lair of the Shadow Broker and Citadel are both aces though.