What do you do about driveways?

[Nate Szana]

When flipping a house in an older working class neighborhood do you typically fix the driveway when rehabbing the rest of the house?  

the house i'm looking at is a ranch build in the 60's  and the driveway is crumbling away.

the rest of neighborhood some have ok driveways and some don't. its not out of place or anything. 

do i leave it? i know that some of the concrete work can get expensive fast

do i throw down some gravel? 

What do you guys typically do?