I had been there less than a year and was paying bang on market value for the house, if not a bit more - most houses in the area at the time were about $130-140pw. I wouldn't have minded so much otherwise.
I would have bought the place if the owner had told me it was for sale, too. By the time I found out it was because a for sale sign appeared and a group of 20 wannabe investors was tromping through the house twice a day with no warning at all.
Edit: I actually took that particular house (all in that area are identical, post-war housing is a bit like that) because it was with an obscure out-of-area agent and they actually didn't want a DNA sample and the lease signed before I was allowed to look like all the other houses. Local agents said it was standard policy. I thought it was a joke, personally, but in the brief time I was living there a house on my street got burnt down and there were a few shootings so an excuse to leave was fine by me. The house was for sale for $70k or so too, I think that area now they are worth about $250k and rent for about $200-250 a week.