I also bought a set from Eastern Gage. I bought the 12" long gages that covered the "standard" sizes (.0015, 0.010, 0.014, 0.024, 0.035, 0.050, 0.063, 0.078, 0.093, 0.109, 0.125) plus all sizes from 0.005" up to 0.100" in 0.005" increments. I think I have over 30 gages in my set. The expanded set lets me take plenty of measurements on soprano pieces, while the standard set only allows 5 or 6 measurements on a soprano piece.
The carbon steel set cost around $130 a fews years back. I cut the 12" long gages to make four 30-gage sets. That's a lot of bang for the buck. I keep the gage set on a board that I lined with magnet strips that hold the gages in place. The carbon steel does rust if exposed to moisture but I wipe the gages down with a rag sprayed with WD-40 occasionally.