I dunno about the taking inventory aspect, but he did recommend that I take a hacksaw to the top of the adjustment screws instead, so it wasn't a clear case of wanting the repair business. I tried to buy a carb rebuild kit from him too, and he said he doesn't have them--he rarely ever rebuilds carbs, just takes them apart, cleans them, and puts them back together unless the diaphram is leaking. What's a carb kit cost a saw shop, $5-10, maybe? Seems pretty cheap insurance while you're taking the time to disassemble a carb, but whatever.
I dunno about my local Stihl dealer either, though. They seem to believe that MSRP is a bad bad idea, and want to charge extra for any parts. They seem to want 10-25% more. They quoted me $152 for an EDT7 Tach.