I must be going into the wrong dwemer ruins because they are surprisingly devoid of anything interesting other than angry falmer and automatons.
Since I began Smithing, I've never come out of a Dwarven ruin with anything less than the ability to make 90+ ingots. At the ruin in Markarth, I had to make two trips with me and a follower almost totally loaded both times. IIRC, that made nearly 200 ingots. That's about 50 suits of armor, with the ability to then improve each set.