I like the older ones. I can look at the underneath of a lot of newer lakes that are too small for Navionics to graph and map. Helps in scouting.
I have been using Delorme Topo for years, now Garmin, on computers and tablets during my travels. Digital topo maps with different overlays, their version, USGS, Open Maps, and aerials. Tablets with gps chips make great nav units.