Hey SRL, (This is not a flame)
Please tell me which parts are plastic in the motor of the Makita. Do you own the Makita? I own many and Dewalt and Porter Cable and... .
Please do not confuse plastic with other composite materials. GM uses a composite materials for their pick up box. It is just as reliable as its metal counterpart. The main feature is weight saving. Modern materials are very very durable and strong.
I may be new to the site, but not to tools. I own many tools and even have and use a Makita rotary(9207SPB) that I bought over 9 years ago!! Not one problem!! Now, I I have the 9227C and LOVE it!! ( The only problem lately are those darn Meg's Finishing Pads grabbing, when none of my others do!

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The reason that Dewalt is found in most shops is simple: it has a variable speed. Up until the 9227C Makita, no other Makita's had varible speed. Even my old 9207 has only 2 speeds.
On a side note, the majority of the tools that we buy for our shop classes at school ( I am a Teacher) are Makita. It is not because they are cheaper. In fact, most of the Makitas cost more than Dewalt. We buy them because they are ultra reliable. But so is Dewalt!! We do not have time to send tools out to get fixed. With that said, I own several Dewalt pieces because I like the product as well.
Whether you own a Makita, Dewalt or Porter Cable, you are buying a quality piece of equipment. I have a 18 volt Dewalt Drill, a 14.4 volt Makita drill, Porter Cable Routers X3, Dewalt Mitre saw, Porter Cable Brad and Finish air nailers, Porter Cable Biscuit Jointer, Makita Grinder, and two Makita rotaries: the 9207 and the 9227. What is my point? I like each piece for many reasons, including comfort, ease of use and of course quality. I love them all!! :up
It is a false assumption that just because many shops use Dewalt that they are a better product when in fact several factors and/or reasons must come into play. The variable speed is a biggest.
Again, this not to flame anyone, but rather to give a different perspective. Can we stop arguing which is better! If you like what you have say so without running down other people's choices.
Cheers!!! :xyxthumbs