Our kids told us the same thing when we purchased our 3 bedroom townhouse in A.C. in 1994 for 80k. Now these same units are selling for well over 300k in what is generally considered to be of the nicest residential areas in A.C.
When you make significant improvements to "skid row" ... the bums and dope pushers are forced out and respectible citizens and businessmen move in to reclaim their neighborhoods.