The $50 mower is in its final death throes. I clipped a big rock and I think it rolled between the blade and the ground, bending something. It started shaking like it had just snorted a bad line. I was hoping that it was just the blade, so I bought a new one. Nope, the shakes are still there. So I brought out the measuring tape. One end of the blade sits 1/4" higher than the other. It looks like a bent shaft.
I bought this mower as a returned item that was marked down at the end of the season. It lasted nearly 9 years with minimal maintenance. I say that was a pretty good run!