Re: The Horrible Economy...
Manufacturers have different specs, configurations, and specialized parts for their engines, drives, and outboards. This all equates to education, and different specialized tools. You can certainly find mechanics out there who not only have the ability and means to work on various manufacturers equipment, but some have multiple specialty skills, ability, knowledge, and certifications. Today, unfortunately, we find too many "manufacturers puppet" type mechanics. They are trained to read a computer and change parts. I'm not saying that this is the case with your mechanic. There are some fantastic mechanics out there who limit themselves to one or two manufacturers for various reasons.
As 5150abf said, this likely has absolutely nothing to do with the economy. It would seem to me, that in a recessed economy, mechanics would be more likely to branch out than limit themselves to only one discipline. Just my .02