Bought this used - acceptable at around $45.  Have been using it for several months.  Works flawlessly.  When it gets real muddy, i hose it down, dry it off, and spray it with Ballistol.  Blades haven't dulled up to this point.  You have to keep an eye on the bolts.  They are similar to a wing nut.  If they fall out, you can easily upgrade to a hex wrench screw/locking nut from home depot for about $2.