And the larger ddial sysops would daisy chain multiple Apple IIes together. A connector would take up one port on each machine. Two machine would give you 12 modems. Each new machine after the second would add space for 5 modems (-1 on old machine, +6 on new machine). For the sysop it was a big investment for very little, if any, monetary reward. I remember a user account would cost $5 a month.

Our ddial was a few towns away so we bought a line in the exchange in between that would forward to the ddial. This way we would not pay a bunch on long distance calls.