Lots of misinformation on this thread either thru ignorance or outright malice.
the 5100 and the 361 are in 2 different classes. I never see anyone comparing the 5100 to the 260. there's a reason for that. so the next closest thing stihl makes that even comes close to the power of the 5100 is all the way up the the 60cc range. then someone is trying to tell me that there is no weight diff between the 5100 and the 361. well, I dont own (nor want to) a 361, but I own a 360 pro and the 5100 is much lighter than it is, and we all know that stihl added an extra brick to the 360 when they made the 361. so if the 361 is heavier than the 360 and the 360 is heavier than the 5100, how the hell does the 5100 and the 361 weigh the same? (you will be graded)
I also see (as usual) that the loudest detractors of the 5100 have never picked one up, much less ran one.
maybe its just me. I buy saws to work with. they are a tool. they are not an investment property, they are not a centerpiece at thanksgiving dinner and you can't make love to one. if I get 2 years out of a saw, I have made my money back 20x over at least. If I need a part, I go get it or go pay for it and have it dropped shipped. as I own more saws than I really need, a short wait does not affect me. FWIW, the saws I have parts drop shipped for are stihls. they have racks of parts, yet never any that I need.
I guess if I laid around until I was out of wood and freezing, and I only owned one saw, then a wait for parts would bother me more. but in my case, I would be waiting on a part for a stihl.
remember, an emergency from lack of planning or abuse on your part does not constitute an emergency on the saw manufacturer's part. the parts are available for all brands.
-Ralph