So if the asking price is on the low, it must have issues right? So make sure I pay more to make sure it doesn't have issues? I'd say that a person could easily sell the same lemon at what you may consider a "proper" price. Only difference between you and I is; I will have paid less for my lemon lol. The fact is, that paying more money isn't going to magically make it better. A lemon is a lemon. Most people are usually going to state issues and why something is priced so low as opposed to expecting people to just know something is up with a low price tag. So for me, that low price tag doesn't mean anything. I'm going to be just as skeptical of that one as I am one that I would pay twice or 10 times that for. There is always a risk of getting a bad deal when buying used regardless of price. However, the previous reputation that this engine has speaks volumes and I will probably steer clear for that.
Try taking a slightly different tangent.
If the price is very low then the person is desperate to sell it.
There has to be a reason why they are desperate to sell it.
They could be moving interstate or to a smaller house.
They could have gottten to old to mow any more
or the mower could be total trash.
Price is no guarantee of quality but just as with a new mower, very cheap is seldom very good.
Occasionally you get mechanical idiots who sell their mower that won't start because , the battery is flat , or the spark plug is fouled or it has run out of fuel.
However they are few & far between.
The mowers other have been talking about were all quite old and thus a low price is justified due to age.
However a relatively new mower with a below market price should ring bells in an intelligent well informed purchaser with a functioning brain.
Unfortunately the glow from a glorious "bargain" seems to blind a lot of people.