I feel like there is value for a property having it be in walking distance to the would be second ave el. It also needn't look like the 100 year old cast iron els in the bronx or brooklyn. Modern elevated rail is fully welded, so no cathunk cathunk or really any screeching, and it usually sits on a cement bed, which is more aesthetically appealing than the old steel beam els that tend to drip stuff that ruins your paint job in nyc or chicago. In Culver city, for example, there is a pocket park under a portion of their elevated expo line: https://goo.gl/maps/fUFW2xQ9z4imj9XE8