Au contrere mon Ami......I have to differ with this statement. I have a Ryobi RE-600 router I have had for 14 years, and still works perfectly. I also have a 8 hole disc R/O sander that is 12 years old, and also works wonderfully. I have a Corner cat that is about 4 yrs old, and is just as good as new. I also have bosch, mikita, Porter cable, hitachi and Milwaukee hand power tools, that treat me just as well as my ryobi stuff.
I think you have to know the limitations of the tools you use. No R/O sander is going to take hard sanding for long. most times when motors go, it's because of the sander being used under too much pressure for too great a time. A lot of people do not understand that you don't need to put much pressure on a sander, but to let the orbits do the work, with the paper making the cut. this is how motors blow.
I learned this from my own experience with a Milwaukee r/o sander. it was an expensive lesson for me 20 yrs ago.
OK glad you said it. There are many many very fine and capable Ryobi tools out there. One may have some sky-high expectations of some of the cheaper tools, but that's not uncommon for any area of interest.
That said, there are some of the routers out there that are outstanding machines and hold their own with their more expensive counterparts - that 600 is one of the best out there.
) = My progression for today...