Unilug wheels ?

In the early mid 70’s I owned a franchise of Don Garlits. Called Don Garlits of Temple Terrace. I can’t tell how many non hub centric mags I sold. They were pretty all that way weather they were ET uni lug with special reversible washer for 5 on 4 1/2” or 5 on 4 3/4”. They made the wheel fit the bolt pattern not the hub. Can you imagine the inventory a shop would have to carry if they made wheels to fit all the different hub sizes and bolt patterns?