All the Blum machine I've ever used are 3 phase. And I think they are at least $1500 when new, and usually around $750 or more used.
How many hinges a month do you install? I use Inserta hinges, which don't need a machine to install. I drill the cup on a drill press, and use the Blum hand jig to drill the two "dowel" or locating holes.