Hey Nick, this is a shitty deal, man. I am replacing the bearings on my BC1000 on Sunday this week, and I bought both bearings new from a local machine shop for what you paid for one bearing. I am also lucky enough to have the guy I bought it from (my old boss) around to help out with this kind of thing. His general attitude towards dealers is that you should simply not do business with them. The tech's are not mechanics (for the life of me I can't figure out why they would neet to cut the housing with a grinder...that seems downright WRONG) and the dealer's are simply concerned with making $$. You'd be best to find a good machine shop, and a good mechanic (which are hard to find granted). I would also raise hell with regards to the methods they are using to do the bearing job, it sounds like they don't know shit.
FWIW, I generally fire a couple of shots on the drum bearings every day. Brendon would not like the grease that builds up on the machine, but I sure as shit don't want to replace bearings too often.
Chris is right, you are getting screwed. NONE of these repairs or parts replacements should be coming out of your pocket. You need to go into that dealer and be an asshole, that will be about the only way you get what you need to outta these guys. I'd also consider dumping a full load of branches their driveway.