WHAT! What makes it special its a merc! But of course me and you live in areas where there's a LOT of mercs...so it's less special to us, but something to be proud to be in....it's more special to those in a 100% HPS areas!!! Now a merc would be VERY special inside CHICAGO!
We still have some mercs in Rhode Island. Mostly on the side streets. The HPS invasion for the 250 and 400w HPS began in the 70's, but the side roads still got new mercs until the 90's when the T&B 113 took over.