I can't think of the last time I thought about a Mapsco book. Actually, the most recent reference was a few weeks ago when I was rewatching The Wire which the particular episode was shot in 2006 or 2007. Mapsco was probably on it's way out by then. GoogMaps was out in 2005, so MapQuest and others were even available before then. (wow, mapquest was available online in '96)