I've been looking to purchase a used Commercial 21". Local shops seem high, and only offer a 90 day Guarantee. Looking on Craigslist, it seems Used commercials come up every so often. I'm planning on getting Toro, or Honda. What should I look for before buying used. What signs should flag that I should walk away from a mower. Natuarllly I'll be armed with the value of the Mower before making an offer. Thanks again, for all your posts. For a Newbie getting into the Biz this site is Heaven.