I don't know about a "risky investment," at one time, the houses sold for five figures, now they sell for six.
Every property represents some sort of compromise, marketwise. You can get a bigger house for the same money on a busy street, or you can get a smaller house for the same money on a quiet street.
The truth is, when you drive by at night, there are lights on in the busy street houses as well as the quiet street houses. It really comes down to whether you need the space or can get by with less.
Then, the secret comes from remembering, when you go to sell, why you bought it in the first place, and then price it accordingly.