It is unfortunate indeed that residential customers cannot easily get three-phase power--if you're a collector of vintage computer equipment, you will find that some devices require three phase to run the fans and motors. Our old Digital TU78 tape drive needed it, for instance, and I know lots of other mainframes and such needed it.

I have read about things you can use to convert two-phase to three-phase, but they're not for the amateur electrician.