Cash Flow VS. Appreciation

[Sam T.]

I currently purchased all of my portfolio geared towards cash flow.  I keep reading that its better to buy for appreciation then it is for cash flow only.  The area that I am renting in are c-d neighborhoods and I can pickup a unit and have it ready to rent for about $35000.  Most of the rentals I target are 3 bedrooms and I can usually get $1150-$1200 month rent with the tenants paying utilities.  If I wanted to buy in a a-b neighborhood it would cost me around $125,000-$140,000 per unit but the rent would be higher at around $1300-$1400 per month.  Is someone able to explain to me how buying something almost 4x the cost and almost similar rents is better.  I would like to start to invest in better areas but the numbers aren't making sense to me.