i have never really bothered with this, but with new allies such as erebor battle master + dwarrowdelf axe + ~10 dwarf allies its hard to ignore now
however i am still wary as there are many effects which can easily get rid of allies if you are out of treachery cancellation, and thus getting rid of all your precious attatchments which would be safer on heros (attatchment discarding effects aside for the time being)
for instance in my last long dark game i discarded 17 cards as i didnt want the lost effect to trigger as it would kill my battle master and 2 other allies
rich
