If you plan on sharpening chains I suggest you spend another $25-50 once you get your machine.  What should you spend it on?  INFORMATION   Find the best sharpener in your area and give him or her the money to spend a 1/2 hour watching them sharpen and asking questions about wheels, chains and angles.  Their experience and info will be far more valuable than $25 and save you a lot of headaches down the road.  The ease of sharpening you see in person and videos is accomplished after hours of practice and a knowledge of how a chain works, types of chains (aggressive, safety, skip, square, raker depth) types of wheels, wheel maintainance etc.  As Bert said, don’t be cheap.  If I was going to get another one, I would go with Oregon.