i think in order to get dealership pricing you have to become a dealer, that means buying and trying to sell dealer brand bar oils for $22 bucks a gallon and other overpriced consumables, and not being allowed to offer more reasonably priced alternatives.
dealing with the manufacturer for parts can be a pain, sometimes husky is back ordered for a few months on certain parts, than your stuck sitting on customers equipment until its available or ordering the parts elsewhere just to get the job done and out the door, which is frowned upon by corporate.
parts can still be marked up a bit to cover your time for sourcing and ordering them and tying up your $ as well. personally I would remain independant from any manufacturer, Ive seen the local husky shop owner beat red in the face screaming on the phone at the warehouse people trying to get parts ordered and paid for weeks ago shipped.
I would steer clear of getting locked into dealing with anyone solely, independant i think is the only way to go.