You are correct that there is no shortage of militaria and supply exceeds demand. Most of it however is low grade common stuff that will probably never sell. Endless web gear, tech sergeant tunics, shot out SMLEs, good conduct medals and the like. Look at SOS or MAX and you will see endless tables of this.
Now if you are talking about desirable militaria, demand exceeds supply. and it sells well if reasonably priced. Go to any show and watch
