Andy,If you go to buy a suit, you'd buy a suit specialist - an Armani, Canali, Zegna e.t.c. If you buy a watch you wouldn't buy any of them as thats no their speciality. Instead you'd opt for a Rolex, Omega or Swatch for that matter.Similarly the BIG 4 including PWCin my opinion are exactly like that. Their speciality is in audit. However they are trying to sell their other services as-well. Indeed they make work, similar to Aramni watches which do sell. Yet they aren't the real deal.