The headband is great early on, but there are too many more interesting options for it to be a long term slot. I did play a low INT wizard once to abuse it (before it was nerfed) and it was fun, but tying up a head slot isn't worth it to me.
Between class abilities and how malleable stats are in 5e, stat items are different from BG 1-2, you weren't playing correctly if you didn't build characters around the loot you got.
