The string based machines (Loricraft, used Keith Monks or Odyssey) are superior in both build quality and cleaning functionality to any VPI. I've cleaned 35 LP's non-stop in a single session on my Loricraft. I was worn out but it would have kept right on going with no deterioration in peformance from gummed up vacuum felts or overheating.
If your friend anticipates enough business and wants really satisfied customers, he needs a serious professional machine.
If your friend anticipates enough business and wants really satisfied customers, he needs a serious professional machine.