Brian – if you’re really looking for low cost, cash flowing properties… look in the hood.

Here’s one on the other side of the Schuylkill, on Girard… not that far from the zoo…
$11k and it’s yours.

http://www.trulia.com/property/1094572277-5133-W-Girard-Ave-Philadelphia-PA-19131
Of course it’s a shell… so you’d need to put some work in… but for $11k…

For less than $30k – going north from the girard place you linked… still adjacent to the park/Kelly Drive… a place that’s got working plumbing/electrical…. ready to rent out.
http://www.trulia.com/property/3012677726-2535-N-Douglas-St-Philadelphia-PA-19132