Since I was going to spend about $70-$90 on a rear bag kit and high lift blade for my old lawn boy, my wife agreed to let me try and find something used with a bag and self propulsion for the same money or a little more. Anyways, I found a lawn boy m series a couple hours away from me and it looks in good shape other than the usual scuffing on the sides of the deck. He wants $90 or best offer. Its missing the air filter and housing. Provided it wasn't used with out the filter on it, I don't think its a bad deal. I didn't even know the m series existed until I started looking for a used mower. as I understand it, these actually used an oil injected Suzuki engine? I assume its a quality engine, but do they ever have problems with the oil injection. also looking at an old snapper hi vac with an aluminum deck on Ebay that goes off tonight, so I've gotta decide soon.