The main issue is free parts... Some of the Manufacturers offer free parts for life if it's under warranty and purchased through an authorized dealer. Depending on the shop - that will be $20 - $60 per year in savings... so it doesn't take long to chew up a $100 price difference... Also if you hit an authorized dealer - any recall or other warranty problems will be addressed. We actually have a plan for our customers, that if they get a reg from us - and we service it when required (either once a year or every other year depending on the reg) we drop the price of service to $39.95 and parts are free for life.
Just add up all your options and see what is best in the long run for you...
Personally, I'd say stick to an authorized dealer... but then again... I'm a bit biased!
Just add up all your options and see what is best in the long run for you...
Personally, I'd say stick to an authorized dealer... but then again... I'm a bit biased!